one sec | screen time + focus
App & Website Limit, Blocker
Free · In-App Purchases
Willpower is not enough against social media algorithms!
That’s why I made one sec:
one sec adds friction to distracting apps to make them less appealing…long-term!
And it works really well: we have proven in scientific studies with the Max-Planck Institute, with the German and Danish government, and in dozens more scientific collaborations:
one sec has incredible effects on your screen time: app usage drops by 57% on average!
…just read our App Store reviews or try it for yourself if you don’t believe me (…you should really try it)!
How is one sec different from Screen Time limits or app blockers?
- one sec DELAYS access to distracting apps instead of blocking apps completely – that’s an important difference psychologically.
- This way, we solve the screen time problem at its roots: long-term & sustainably!
- one sec is always on, and makes using social media just slightly more annoying…so you’ll end up using it only when you actually have a reason!
Which apps can I use with one sec?
- You can set up one sec with any app you’d like to use less / more intentional.
- Most popular use-cases are: social media, games, video streaming, dating, stock/coin trading, adult content.
- Using one sec with one app of your choice if completely free, for more you’ll need to purchase one sec pro (we also need to finance development of our app!).
What if I get stuck scrolling?
- No worries, one sec offers a Doom Scroll Emergency Brake: We call it Re-Intervention.
- After a set time (e.g. 5 minutes) you’ll be kicked out of social media, and you’ll have to go through an intervention again to unlock more time.
Where can I learn more about the scientific background of one sec?
→ https://one-sec.app/research
Can I use one sec to interrupt access to websites as well?
→ Yes, one sec offers a free Safari extension as well.
How does one sec work technically?
- one sec uses Shortcuts Automation to toggle a deep breath animation whenever you open one of the configured apps (Instagram, Twitter, YouTube…).
- This breaks unconscious social media habits short-term (literally, as soon as you have set it up) and even helps long-term by adding more friction when opening these apps.
Integrations:
- Structured: one sec blocks apps during unfinished tasks.
- LENGO: learn vocabulary to unlock social media.
I developed one sec for myself in 2020…and it worked so well I decided to upload it to the App Store.
Especially for people with ADHD one sec is a great tool to gain back control for incredible focus and concentration.
– Frederik
Legal information:
Available Subscription Options:
one sec pro (annual / monthly / lifetime unlock)
one sec can contribute mindful moments to the Health App via HealthKit.
Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://one-sec.app/privacy/
more
This app is really really amazing and I’m glad it exists. It is already helping me to reduce certain compulsions to open certain apps, and prevents me from staying on each app too long.There are some bugs or potential features though:- “I don’t want to open this app” could pop out a bit earlier or maybe immediately so we can cancel right away. I know we can just navigate away from the app though but this would be a nice feature.- PIP intentions don’t seem to show up for apps, only for Safari. Not sure why, am I doing something wrong or is this a known bug?- video previews of the interventions (or an in-app simulation of the intervention)- ensure that all interventions support features like Healthy alternatives. Eg I think that the circle tracing one doesn’t support this feature of Healthy alternatives. Along with this, some documentation such as a matrix of interventions and features, with checks/crosses, would be nice.- morning countdown could work for other apps than just the delayed apps. Eg I don’t want to make it hard for me to use Telegram or WhatsApp but I may want to stop myself from using them in the morning when I wake up (I have friends in the East so they send me messages while I’m asleep so there is lots of temptation to reply to them when I wake up). But they shouldn’t be intervened any other time of the day.
This app is really really amazing and I’m glad it exists. It is already helping me to reduce certain compulsions to open certain apps, and prevents me from staying on each app too long.There are some bugs or potential features though:- “I don’t want to open this app” could pop out a bit earlier or maybe immediately so we can cancel right away. I know we can just navigate away from the app though but this would be a nice feature.- PIP intentions don’t seem to show up for apps, only for Safari. Not sure why, am I doing something wrong or is this a known bug?- video previews of the interventions (or an in-app simulation of the intervention)- ensure that all interventions support features like Healthy alternatives. Eg I think that the circle tracing one doesn’t support this feature of Healthy alternatives. Along with this, some documentation such as a matrix of interventions and features, with checks/crosses, would be nice.- morning countdown could work for other apps than just the delayed apps. Eg I don’t want to make it hard for me to use Telegram or WhatsApp but I may want to stop myself from using them in the morning when I wake up (I have friends in the East so they send me messages while I’m asleep so there is lots of temptation to reply to them when I wake up). But they shouldn’t be intervened any other time of the day.
Instagram reels to me can feel like getting sucked into a black hole where i lose my grip on reality and can’t stop scrolling. Having one sec interventions makes me aware of my surroundings every 5 minutes meaning i can enjoy the funny videos on Instagram without missing out on my day. I use apple’s screen time feature as well to limit Instagram to an hour per day and I have someone else who knows the screen time password. This means I can only do ‘one more minute’ once when the time runs out. I feel like I am in control of my time now. I like the features one sec has especially the new scrolling wheel to choose the amount of time you want before an intervention which is way more purposeful than before when you hit a button to choose the time. This app is very helpful to my life.
Instagram reels to me can feel like getting sucked into a black hole where i lose my grip on reality and can’t stop scrolling. Having one sec interventions makes me aware of my surroundings every 5 minutes meaning i can enjoy the funny videos on Instagram without missing out on my day. I use apple’s screen time feature as well to limit Instagram to an hour per day and I have someone else who knows the screen time password. This means I can only do ‘one more minute’ once when the time runs out. I feel like I am in control of my time now. I like the features one sec has especially the new scrolling wheel to choose the amount of time you want before an intervention which is way more purposeful than before when you hit a button to choose the time. This app is very helpful to my life.
I’ve been using this app for some time, it’s the best one I’ve found!! Seriously!! Life changing!!! Yes I pay, but it is worth every penny. When I first started using it my adhd brain found ways around the block, it’s hard to find will power in the moment!!! I messaged the people that run the app with my idea on how they could add some features in the app. Within a matter of weeks it had been changed and now there is absolutely no way around the strict block when I’m locked in hyper-focus. The only way is to go is into shortcuts which you can set up to give an extra long breathing exercise which snaps me out of my hyper focus and reminds me why I set it up in the first place!!! Great work guys, keep it up! The hours I have gained!! lol
I’ve been using this app for some time, it’s the best one I’ve found!! Seriously!! Life changing!!! Yes I pay, but it is worth every penny. When I first started using it my adhd brain found ways around the block, it’s hard to find will power in the moment!!! I messaged the people that run the app with my idea on how they could add some features in the app. Within a matter of weeks it had been changed and now there is absolutely no way around the strict block when I’m locked in hyper-focus. The only way is to go is into shortcuts which you can set up to give an extra long breathing exercise which snaps me out of my hyper focus and reminds me why I set it up in the first place!!! Great work guys, keep it up! The hours I have gained!! lol
This app is so well thought through and I’ve loved seeing the feature set grow over the last couple of years. It does take a bit of time and experimentation to get it set up but I wouldn’t look back. My favourite features are being able to block certain apps at specific times of day e.g. when I should be asleep and the “don’t get lost notifications” which remind me that I’ve been scrolling Facebook for 15 minutes (or however long I set it for) and ask me if I should stop. With premium, you can configure it so you can switch in and out of an app within a few minutes without having to re-do the intervention which I also really like.
This app is so well thought through and I’ve loved seeing the feature set grow over the last couple of years. It does take a bit of time and experimentation to get it set up but I wouldn’t look back. My favourite features are being able to block certain apps at specific times of day e.g. when I should be asleep and the “don’t get lost notifications” which remind me that I’ve been scrolling Facebook for 15 minutes (or however long I set it for) and ask me if I should stop. With premium, you can configure it so you can switch in and out of an app within a few minutes without having to re-do the intervention which I also really like.
This is a smaller update which includes a bunch of bug fixes and UI improvements:
- Corner radii are now more consistent on iOS 26.
- Fixes an issue where haptic feedback was not working on some devices.
- Improves one sec’s Safari extension, especially the Re-Intervention.
- Improves padding in onboarding.
- Double checks if you really want to delete a recurring block before proceeding.
- Concludes another scientific research project inside one sec.
PS: We are super busy working on the next big update for one sec :)
5.2.2 5 days ago
Version 5.2 is a big update for one sec — but instead of adding headlining new features, this release focuses on improving what’s already there and making everything more reliable.
- Re-Interventions now work with websites via our Safari extension.
- Fixed an issue where 23-hour blocks could not be started.
- Journaling Intervention redesigned for iOS 26, plus many bug fixes.
- Journal entries now reliably sync via iCloud with our companion app Reflective.
- Conversational Reflection is now faster and more reliable.
- Fixed an issue where the Block Live Activity didn’t start when launching a block via the widget.
- Bug fixes for the Intention Picker.
- During strict blocks, screen time permissions can no longer be re-authenticated and apps cannot be reassigned (to prevent cheating).
- The widget now refreshes regularly to always show up-to-date usage data.
- Many additional bug fixes and improvements throughout the app.
I really hope you like this update and the continuous improvements we’re making to one sec.
If you do, leaving a quick review on the App Store would help us a lot.
Thanks for your support!
Frederik
5.2.1 27 Mar
Version 5.2 is a big update for one sec — but instead of adding headlining new features, this release focuses on improving what’s already there and making everything more reliable.
- Re-Interventions now work with websites via our Safari extension.
- Fixed an issue where 23-hour blocks could not be started.
- Journaling Intervention redesigned for iOS 26, plus many bug fixes.
- Journal entries now reliably sync via iCloud with our companion app Reflective.
- Conversational Reflection is now faster and more reliable.
- Fixed an issue where the Block Live Activity didn’t start when launching a block via the widget.
- Bug fixes for the Intention Picker.
- During strict blocks, screen time permissions can no longer be re-authenticated and apps cannot be reassigned (to prevent cheating).
- The widget now refreshes regularly to always show up-to-date usage data.
- Many additional bug fixes and improvements throughout the app.
I really hope you like this update and the continuous improvements we’re making to one sec.
If you do, leaving a quick review on the App Store would help us a lot.
Thanks for your support!
Frederik
5.2 13 Mar
- Big update for one sec’s conversational reflection intervention. Completely redesigned & improved tech stack.
- App Icon picker updated and UI fixes.
- Bug fixes around strict block of apps.
- Fixes an issue where strict block limitations were already enforced while a strict block was being created.
- one sec uninstall protection during strict blocks.
- Fix “Re-Intervention” and “Always Ask” time picker animation glitch.
- Fix selection of breathing prompt text – and simplified breathing prompt customization while we were at it.
- Fix glitch in LENGO vocab list, now you can select and delete words again.
- Fix one sec’s time budget intervention.
Hope you like these improvements & bug fixes!
If one sec helps you, please support our work by writing a review on the App Store. Thank you :)
– Frederik
5.1 17/12/2025
Hey lovely one sec user!
In addition to the announcements of our BIG 5.0 update, we’re taking the time today to polish the update and address some bugs:
- Fixes an issue where the intention picker would not show up.
- Sheet automatically resizes to full-screen when selecting a custom block duration.
- Overlapping blocks are now sorted correctly.
- Advanced breathing exercises (such as box breathing or 4-7-8) now use Liquid Glass for the dismiss button as well.
- Slightly refined settings UI – and moved iCloud Backup settings under the account tab.
- Fix where the toggle to turn off 50% budget remaining notifications did not work.
- Ensures that our FAQs are shown when pressing the FAQ button on the tips tab.
- Fixes an issue where the phone-free morning / Awake integration wouldn’t display the selected set of apps and categories.
- Changes the icon for the phone-free morning to a more friendly one.
- Fixes multiple background crashes (hopefully).
- Fixes an issue where the toggle to enable a weekday-based intervention schedule wouldn't work.
- Automatically expands the new block sheet to full size while selecting a custom time interval.
- Adds a new toggle in “Don’t get lost notifications” to show a warning notification when reaching a 50% threshold of a Re-Intervention or delayed intervention.
- Applies new Liquid Glass design to “U sure bout that?” intervention.
Don’t forget: if you like one sec, please write us a nice review on the App Store. This helps to spread the word about the app.
Thanks a lot for your ongoing support, have a great day!
– Frederik
5.0.5 06/10/2025
Hey lovely one sec user!
In addition to the BIG announcements of last week’s 5.0 update, we’re taking the time today to polish the update and address some bugs:
- Fixes an issue where the intention picker would not show up.
- Sheet automatically resizes to full-screen when selecting a custom block duration.
- Overlapping blocks are now sorted correctly.
- Advanced breathing exercises (such as box breathing or 4-7-8) now use Liquid Glass for the dismiss button as well.
- Slightly refined settings UI – and moved iCloud Backup settings under the account tab.
- Fix where the toggle to turn off 50% budget remaining notifications did not work.
- Ensures that our FAQs are shown when pressing the FAQ button on the tips tab.
- Fixes an issue where the phone-free morning / Awake integration wouldn’t display the selected set of apps and categories.
- Changes the icon for the phone-free morning to a more friendly one.
- Fixes multiple background crashes (hopefully).
- Fixes an issue where the toggle to enable a weekday-based intervention schedule wouldn't work.
- Automatically expands the new block sheet to full size while selecting a custom time interval.
- Adds a new toggle in “Don’t get lost notifications” to show a warning notification when reaching a 50% threshold of a Re-Intervention or delayed intervention.
- Applies new Liquid Glass design to “U sure bout that?” intervention.
Don’t forget: if you like one sec, please write us a nice review on the App Store. This helps to spread the word about the app.
Thanks a lot for your ongoing support, have a great day!
– Frederik
5.0.4 27/09/2025
Hey lovely one sec user!
In addition to the BIG announcements of last week’s 5.0 update, we’re taking the time today to polish the update and address some bugs:
- Fixes an issue where the phone-free morning / Awake integration wouldn’t display the selected set of apps and categories.
- Changes the icon for the phone-free morning to a more friendly one.
- Fixes multiple background crashes (hopefully).
- Fixes an issue where the toggle to enable a weekday-based intervention schedule wouldn't work.
- Automatically expands the new block sheet to full size while selecting a custom time interval.
- Adds a new toggle in “Don’t get lost notifications” to show a warning notification when reaching a 50% threshold of a Re-Intervention or delayed intervention.
- Applies new Liquid Glass design to “U sure bout that?” intervention.
Don’t forget: if you like one sec, please write us a nice review on the App Store. This helps to spread the word about the app.
Thanks a lot for your ongoing support, have a great day!
– Frederik
5.0.3 24/09/2025
We’re celebrating one sec’s 5th birthday this month.
It’s hard to believe that it’s been 5 years already since I started working on one sec.
I’m grateful every day I get to work on such an impactful app with the best team I could wish for!
This summer, we’ve been working extremely hard on a large list of new features, improvements and bug-fixes and we can’t wait to get it into your hands.
We decided to call this update:
one sec 5.0
This update brings…
…an all-new block tab: upcoming & past blocks at a glance (no matter if they are triggered by a Schedule, a manual Block, Good Morning Countdown, Focus Filter, a Structured task…).
…an all-new tips tab with hands-on tips to get the most out of one sec & your new life.
…a new conversational reflection intervention using the new on-device LLM helping you to reflect even more on why you open apps.
…a much improved ”Good Morning Countdown“ that now integrates with the new no-mercy alarm clock app “Awake”.
…iCloud backup for your stats (preventions & time saved).
…many many design refinements and bug fixes throughout one sec.
If you like one sec & our continuous work on it, please take a moment to write a review on the App Store.
Thank you very much for your support!
– Frederik
5.0.2 19/09/2025
We’re celebrating one sec’s 5th birthday this month.
It’s hard to believe that it’s been 5 years already since I started working on one sec.
I’m grateful every day I get to work on such an impactful app with the best team I could wish for!
This summer, we’ve been working extremely hard on a large list of new features, improvements and bug-fixes and we can’t wait to get it into your hands.
We decided to call this update:
one sec 5.0
This update brings…
…an all-new block tab: upcoming & past blocks at a glance (no matter if they are triggered by a Schedule, a manual Block, Good Morning Countdown, Focus Filter, a Structured task…).
…an all-new tips tab with hands-on tips to get the most out of one sec & your new life.
…a new conversational reflection intervention using the new on-device LLM helping you to reflect even more on why you open apps.
…a much improved ”Good Morning Countdown“ that now integrates with the new no-mercy alarm clock app “Awake”.
…many many design refinements and bug fixes throughout one sec.
If you like one sec & our continuous work on it, please take a moment to write a review on the App Store.
Thank you very much for your support!
– Frederik
5.0.1 15/09/2025
We’re celebrating one sec’s 5th birthday this month.
It’s hard to believe that it’s been 5 years already since I started working on one sec.
I’m grateful every day I get to work on such an impactful app with the best team I could wish for!
This summer, we’ve been working extremely hard on a large list of new features, improvements and bug-fixes and we can’t wait to get it into your hands.
We decided to call this update:
one sec 5.0
This update brings…
…an all-new block tab: upcoming & past blocks at a glance (no matter if they are triggered by a Schedule, a manual Block, Good Morning Countdown, Focus Filter, a Structured task…).
…an all-new tips tab with hands-on tips to get the most out of one sec & your new life.
…a new conversational reflection intervention using the new on-device LLM helping you to reflect even more on why you open apps.
…a much improved ”Good Morning Countdown“ that now integrates with the new no-mercy alarm clock app “Awake”.
…many many design refinements and bug fixes throughout one sec.
5.0 13/09/2025
This update fixes an issue where one sec’s “Settings Lock” could result in very short intervention times.
On top of that, we’re adding a new research collaboration with Wuppertal University.
4.1.12 10/09/2025
This update fixes an issue where one sec’s “Settings Lock” could result in very short intervention times.
On top of that, we’re adding a new research collaboration with Wuppertal University.
4.1.11 09/09/2025
- Automatically removes target app lock / “intervention cheat prevention” after 1 minute.
- Fixes an issue where on some devices Re-Interventions could be removed by locking and unlocking the device screen.
- Fixes an issue where under some circumstanced blocked apps could be unlocked during blocks.
- Delayed interventions now follow intervention schedules as well.
- Fixes an issue with research studies.
4.1.10 06/08/2025
This update contains smaller bug fixes and improvements:
Ensures that the settings lock and shortcuts app lock uses the default breathing exercise when the budgeting feature is enabled.
4.1.9 23/07/2025
- Fixes an issue where the anti-cheat protection would remain active even when the target app is allowed to be used (e..g allowed by focus filter).
- Fixes an issue where the Structured intervention would not trigger for Delayed Interventions. You need to set up Automations for the target apps, in order for the Structured intervention to work, even for the new Delayed Intervention mode.
- Accessibility VoiceOver improvements for the time interval picker (Re-Interventions and “Always Ask Intervention”). Shout-out to Marissa for bringing this to our attention!
- Improves capabilities to re-connect apps via the Screen Time app picker in case glitches with Apple’s Screen Time framework occur.
- Smaller UI improvements and bug fixes throughout the whole app.
If you like one sec and the continuous work we put into app updates, I’d highly appreciate if you could take three minutes to leave a review on the App Store <3
– Frederik
4.1.8 12/07/2025
– Fixes an issue where block sessions would not trigger for apps set up with the new delayed intervention mode.
– Fixes an issue where the onboarding survey would pop up all the time for users who just want to use one sec’s block schedule feature.
– Fixes an issue with importing vocabulary from LENGO.
4.1.7 06/07/2025
- If a subscription expires, and you had the one sec settings lock enabled, you can now go through an intervention again to unlock one sec’s settings.
- Fixes an issue where you couldn’t add new websites to one sec’s Safari extension.
- Fixes an issue where the latest update of one sec would crash on iOS 16 devices.
Sorry about the trouble!
4.1.6 18/06/2025
This update adds a new data donation research project in collaboration with RWTH Aachen.
If you’d like to participate, please fill out the opt-in survey that’s shown in a banner on one sec’s Overview page.
4.1.5 15/06/2025
Another small, but important bug-fix update:
- Fixes an issue where per-app breathing prompts were not saved permanently.
- Fixes an issue where the “Lock Target App during Intervention” feature would keep locking the target app even when the intervention is turned off or the intervention mode is switched.
- Ensures that push permission is granted when “Always Ask” intervention is set up.
4.1.4 08/06/2025
Small, but important bug fixes:
- Make sure that up-to-date target apps are available to be selected in Focus Filters.
- Fixes an issue where turning on / off the Re-Intervention was not saved for individual target apps.
- Push notification permission was not requested when setting up a delayed intervention.
- App-based Max. Re-Intervention Time Interval was not permanently saved.
- Re-Intervention would only allow you to choose 1 minute (or unlimited) in some rare cases.
- Automations would not trigger, if the intervention for a target app had previously been turned off.
Sorry about the inconvenience!
On top of these bug fixes, this update of course also includes the big new features of the previous version:
We’ve been working hard over the past year to offer two new intervention modes:
- Delayed Intervention Mode: You can now set up a fixed delay after which the intervention should become active: so you can use a target app within boundaries (e.g. 2 minutes per hour) without getting interrupted
- “Always ask” Intervention Mode: Every time you open a target app, you’ll be prompted to set the time you intend to spend on it, and only after the time has been consumed the target app will be shielded – and an intervention is required to unlock more time.
These two new intervention modes have been highly requested features and are basically the “Re-Intervention without the initial breathing exercise”.
We’ve run one scientific research project on this each with the Danish and German governments and are super happy with the results:
This new mode is less frustrating while also being extremely effective in reducing time spent on target apps.
one sec’s standard immediate intervention mode remains available unchanged, of course.
On top of that, we’ve also improved many smaller aspects of one sec:
- You can now add custom apps without knowing their URL schemes (but without that one sec can’t automatically open the target app unfortunately, so you have to proceed to the target app manually).
- You can now set the Maximum Re-Intervention Time Interval on a per-app basis.
- Intervention & Block Schedules now display the weekday selection in a localized manner (start of week).
- Translation improvements throughout the app.
- Lock time & time zone settings during strict blocks to prevent cheating.
- LENGO integration accessibility improvements for voice over.
4.1.3 04/06/2025
This update fixes some important bugs:
- Push notification permission was not requested when setting up a delayed intervention.
- App-based Max. Re-Intervention Time Interval was not permanently saved.
- Re-Intervention would only allow you to chose 1 minute (or unlimited) in some rare cases.
- Automations would not trigger, if the intervention for a target app had previously been turned off.
Sorry about the inconvenience!
On top of these bug fixes, this update of course also includes the big new features of the previous version:
We’ve been working hard over the past year to offer two new intervention modes:
- Delayed Intervention Mode: You can now set up a fixed delay after which the intervention should become active: so you can use a target app within boundaries (e.g. 2 minutes per hour) without getting interrupted
- “Always ask” Intervention Mode: Every time you open a target app, you’ll be prompted to set the time you intend to spend on it, and only after the time has been consumed the target app will be shielded – and an intervention is required to unlock more time.
These two new intervention modes have been highly requested features and are basically the “Re-Intervention without the initial breathing exercise”.
We’ve run one scientific research project on this each with the Danish and German governments and are super happy with the results:
This new mode is less frustrating while also being extremely effective in reducing time spent on target apps.
one sec’s standard immediate intervention mode remains available unchanged, of course.
On top of that, we’ve also improved many smaller aspects of one sec:
- You can now add custom apps without knowing their URL schemes (but without that one sec can’t automatically open the target app unfortunately, so you have to proceed to the target app manually).
- You can now set the Maximum Re-Intervention Time Interval on a per-app basis.
- Intervention & Block Schedules now display the weekday selection in a localized manner (start of week).
- Translation improvements throughout the app.
- Lock time & time zone settings during strict blocks to prevent cheating.
- LENGO integration accessibility improvements for voice over.
4.1.2 02/06/2025
This update fixes some important bugs:
- App-based Max. Re-Intervention Time Interval was not permanently saved.
- Re-Intervention would only allow you to chose 1 minute (or unlimited) in some rare cases.
- Automations would not trigger, if the intervention for a target app had previously been turned off.
Sorry about the inconvenience!
On top of these bug fixes, this update of course also includes the big new features of the previous version:
We’ve been working hard over the past year to offer two new intervention modes:
- Delayed Intervention Mode: You can now set up a fixed delay after which the intervention should become active: so you can use a target app within boundaries (e.g. 2 minutes per hour) without getting interrupted
- “Always ask” Intervention Mode: Every time you open a target app, you’ll be prompted to set the time you intend to spend on it, and only after the time has been consumed the target app will be shielded – and an intervention is required to unlock more time.
These two new intervention modes have been highly requested features and are basically the “Re-Intervention without the initial breathing exercise”.
We’ve run one scientific research project on this each with the Danish and German governments and are super happy with the results:
This new mode is less frustrating while also being extremely effective in reducing time spent on target apps.
one sec’s standard immediate intervention mode remains available unchanged, of course.
On top of that, we’ve also improved many smaller aspects of one sec:
- You can now add custom apps without knowing their URL schemes (but without that one sec can’t automatically open the target app unfortunately, so you have to proceed to the target app manually).
- You can now set the Maximum Re-Intervention Time Interval on a per-app basis.
- Intervention & Block Schedules now display the weekday selection in a localized manner (start of week).
- Translation improvements throughout the app.
- Lock time & time zone settings during strict blocks to prevent cheating.
- LENGO integration accessibility improvements for voice over.
4.1.1 30/05/2025
The next BIG update of one sec is here:
We’ve been working hard over the past year to offer two new intervention modes:
- Delayed Intervention Mode: You can now set up a fixed delay after which the intervention should become active: so you can use a target app within boundaries (e.g. 2 minutes per hour) without getting interrupted
- “Always ask” Intervention Mode: Every time you open a target app, you’ll be prompted to set the time you intend to spend on it, and only after the time has been consumed the target app will be shielded – and an intervention is required to unlock more time.
These two new intervention modes have been highly requested features and are basically the “Re-Intervention without the initial breathing exercise”.
We’ve run one scientific research project on this each with the Danish and German governments and are super happy with the results:
This new mode is less frustrating while also being extremely effective in reducing time spent on target apps.
one sec’s standard immediate intervention mode remains available unchanged, of course.
On top of that, we’ve also improved many smaller aspects of one sec:
- You can now add custom apps without knowing their URL schemes (but without that one sec can’t automatically open the target app unfortunately, so you have to proceed to the target app manually).
- You can now set the Maximum Re-Intervention Time Interval on a per-app basis.
- Intervention & Block Schedules now display the weekday selection in a localized manner (start of week).
- Translation improvements throughout the app.
- Lock time & time zone settings during strict blocks to prevent cheating.
- LENGO integration accessibility improvements for voice over.
4.1 27/05/2025
- Fixes an issue where the adult content detox feature could not be turned on in some rare cases.
- Fixes an issue where opening a target app could be slow in some rare cases.
- Fixes an issue where the Re-Intervention time interval picker would not work on right-to-left languages (e.g. Arabic, Hebrew).
Sorry for the trouble!
4.0.12 08/04/2025
Fixes a bug where the icon for “Saturday” was not visible in weekday-specific intervention schedules.
4.0.11 04/04/2025
This is a smaller update which includes a bunch of bug fixes and UI improvements:
- Corner radii are now more consistent on iOS 26.
- Fixes an issue where haptic feedback was not working on some devices.
- Improves one sec’s Safari extension, especially the Re-Intervention.
- Improves padding in onboarding.
- Double checks if you really want to delete a recurring block before proceeding.
- Concludes another scientific research project inside one sec.
PS: We are super busy working on the next big update for one sec :)
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Version 5.2.2 5 days ago
Data Not Linked to You The following data may be collected but it is not linked to your identity:
Supported Features
VoiceOver
Larger Text
Dark Interface
Sufficient Contrast
Reduced Motion