Gratlock: Gratitude Journal

Pick the apps that eat your day. One grateful sentence opens them for a while, then they lock again on their own. Free for 3 days.

You reach for the app out of habit. Gratlock meets you with a calm screen and one question: what felt good today?

Write one grateful sentence and your apps open for the window you chose: 15 minutes, 30, an hour, or the rest of the day. When the window ends, the lock returns on its own.

HOW IT WORKS

1. Pick the apps that pull you in, using Apple's own Screen Time picker.
2. When you open one, a quiet block screen stands in the way.
3. One grateful sentence opens them, and every sentence lands in a private journal you keep.

WHY ONE SENTENCE

In a randomized trial of about 2,000 people, self-set app limits cut use by 22 minutes a day, sustained across 12 weeks (American Economic Review, 2022). Across 145 studies and nearly 25,000 people, gratitude writing produced a small but consistent improvement in wellbeing (PNAS, 2025), and writing more often did not produce bigger effects. One sentence is enough. These are findings about app limits and gratitude writing in general, not measurements of this app.

PRIVATE BY DESIGN

Your journal never leaves your phone. There is no account, no cloud sync, and no server that could read your entries. Blocking runs on Apple's Screen Time system, which keeps your app choices hidden even from us. Screen Time data is never used for advertising and never shared.

WHAT YOU GET

• Unlimited app and category locking, enforced by iOS itself • A gratitude journal that grows one honest sentence at a time • Unlock windows you control, with automatic re-locking • Plain-text journal export, anytime • No ads and no feed, just your words

Gratlock is free for 3 days, then a paid subscription with yearly and weekly options. Prices are shown in the app before you pay anything, and you can cancel anytime in your Apple subscription settings.

Terms of Use: https://www.gratlock.com/terms Privacy Policy: https://www.gratlock.com/privacy