TaskLock vs one sec

In short: choose TaskLock if you want apps to stay locked until the work is finished. Choose one sec if you want a gentle pause before each app rather than a hard block, or if you need it on Android and desktop browsers. one sec changes how often you open apps; TaskLock changes whether you can open them at all until a task is done.

Feature by feature

How the lock ends

TaskLockUnlocks when you check off the task, finish the habit or the event ends. A countdown and a daily change limit make early unlocks deliberate.
one secUsually doesn’t block: a breathing pause, then you choose. Pro adds strict blocks.

To-do list, habits and calendar

TaskLockYes. All built in, one screen.
one secNo. Tasks only via the Structured app.

Apple Watch

TaskLockYes. Complete on the watch, unlock on iPhone.
one secNo.

No account needed

TaskLockYes. No login, no email.
one secYes. None in the setup steps; optional for sync.

Works offline

TaskLockYes. Including locking.
one secNot stated. Intervention logic runs on the device, per its FAQ.

Free version

TaskLockYes. With limits; Premium removes them.
one secYes. One app with the breathing exercise.

Website blocking

TaskLockYes. In Safari.
one secYes. Via browser extensions.

Platforms

TaskLockiPhone (iOS 17 or later) and Apple Watch (watchOS 10 or later).
one seciPhone (iOS 15 or later), iPad, Mac, Android, browser extensions.

Which one is right for you

Choose TaskLock if…

  • You want the app to stay locked until the task is checked off, with no “continue anyway” button.
  • You want tasks, habits and calendar built in.
  • You use an Apple Watch.
  • You are locking apps for homework, exams or deadlines.

Choose one sec if…

  • You want a mindful pause rather than a block.
  • You want to cut app opens on iPhone, iPad, Mac, Android and in browsers with one purchase.
  • You care about published research behind the method.
  • You already plan in the Structured app and want its tasks to block apps.

What they have in common

Both are free to start, both can cover websites as well as apps, and both are built for people who want to change their own habits rather than control someone else’s phone.

Common questions

Does one sec block apps completely?

By default, no. one sec delays access with a breathing pause and then lets you choose to continue. Its paid version adds time limits, schedules and strict blocks. TaskLock blocks completely until the task is done, with no pause-and-continue option.

Can one sec unlock apps when a task is done?

Only through the separate Structured planner app: with that integration, one sec keeps apps closed during the time of an uncompleted task. TaskLock has the task list built in and locks until the task is checked off, with no second app.

Which is better for studying?

For a homework session where the phone must stay closed, TaskLock’s task and event locks are stricter. For long-term habit change where you want to notice each unlock, one sec’s pause is designed for that. The two can be combined: a hard lock during study and a pause the rest of the day.

Try TaskLock free

Finish tasks, unlock apps. No account, works offline.

Download on the App Store

Last checked: October 7, 2026. Sources for one sec: one sec on the App Store, one sec website and FAQ. TaskLock details come from the app itself. If something here is out of date, email info@tasklockapp.com. Other comparisons: vs Opal, vs ScreenZen, vs Forest, vs Apple Screen Time.