Tarn uses Apple Screen Time to shield distracting apps and sites, then lets you commit to a lock so you cannot undo it on impulse.
Coming soon to the App StoreNo accounts, no subscriptions, no tracking. All processing happens on your device using Apple's own Screen Time framework.
Block everything except the apps you choose to keep, or pick specific apps to block. Your choice, your rules.
Lock your settings with a cooling-off period — from 1 hour to 30 days. No more undoing it the moment willpower dips.
Give a password to a trusted person — a partner, friend, or family member. They can unlock instantly; you have to wait.
No accounts, no network requests, nothing sent anywhere. Nothing to breach, nothing to leak.
Prevent coin packs, subscriptions, and paid upgrades inside apps — useful alongside app blocking.
Turn on strict mode and Tarn prevents removing itself or any blocked app while the lock is active.
Set up in minutes. Stays in place after that.
Anywhere willpower alone isn't enough.
Block betting apps and sites with a 30-day lock. Give the passcode to a partner or sponsor. No impulse override.
Block social media for the morning. Set an 8-hour cooldown so a rough patch doesn't derail the day.
Set up blocks together, give yourself the passcode. Your teenager can request unlocking — the decision stays with you.
Porn, social media, news — if the app is part of a loop you want to break, Tarn puts friction between the urge and the action.
The difference between Tarn and built-in Screen Time is that Tarn's blocks can't be removed the moment willpower fails. Once you lock in, there are only two ways out:
With strict mode on, Tarn prevents app deletion while the lock is active. Apple's Screen Time framework allows blocking the removal of apps — Tarn uses this to protect itself and your blocked apps from being deleted impulsively.
The passcode can only be changed or removed while Tarn is unlocked. If you forget it while locked, the only way out is the cooling-off wait. Don't use a passcode you'd forget — or write it down and give it to someone else to hold.
Apple doesn't allow third-party apps to block Safari as an app. What Tarn can do is block all web browsing inside Safari — every website shows the Tarn screen. The Safari icon stays on your home screen, but there's nowhere to go inside it.
No. Tarn makes zero network requests. Everything runs locally using Apple Screen Time. There are no accounts, no analytics, no crash reporting. Nothing leaves your device.
Apple exempts Phone and Messages from third-party Screen Time restrictions. Tarn cannot block them, and this cannot be changed. Emergency calls are always available regardless of what is blocked.
Yes. Settings are stored in a shared app group that persists across restarts and in-place app updates. A DeviceActivity schedule also reasserts the lock so it self-heals if something disrupts it.