Scan your tag
Place your phone on your NFC tag. Lock activates instantly.
Apps are locked
Selected apps are locked. No way to cheat.
Rescan to unlock
When you're ready, rescan the tag to get your apps back.
Your attention isn't a feature battleground.
Lock turns your phone off with a tap. No streaks. No dashboards. No dopamine trick that stops working after a week.
Stand up to unlock.
That's what makes the difference. You have to get up and scan the tag. Friction creates intention. No swipe, no secret code. Just you and a deliberate gesture.
Drag the phone over the NFC tag
There is no "Ignore" button.
Android's native tools (Digital Wellbeing, Focus, app limits) always keep an exit door. An "Extend", "For today", "Disable" button. One tap, and it's open.
Lock, no. The only key is physical. If you don't have it on you, there's nothing to bypass.
Because willpower
isn't a feature.
Android's built-in screen timers fail for the same reason diets do: the exit is always one tap away. Lock moves the exit off your phone.
Still wondering?
Fair.
Everything we'd ask too. If something's missing, email contact@lock-app.fr. We read them all.
Does it track me?
No servers. No account. Nothing leaves your phone. Ever.
Can I cheat?
Only by physically walking back to the tag and tapping it. That's the point, and the friction.
Does it cost money?
No. Free forever. No ads, no in-app purchases. Donations welcome, never required, never nagged.
Why Android only?
On iOS, check our friends at foqos, a free alternative that nails the same idea.
I need Slack for work.
Whitelist it. Lock blocks what you choose, nothing else. Even during a locked session.
Can my kid use it?
Yes. No account means no data collection on minors. Pair-tag mode for homework hours.
What if I lose my NFC tag?
You can pair a new one in seconds. And if you're stuck mid-session, your apps auto-unlock after 5 hours by default. Configurable from the menu, down to a minute or up to no auto-unlock at all.
Where can I buy an NFC tag?
Any standard NFC tag works. Two favorites: a round sticky tag (almost invisible, sticks on a desk or fridge) or a wallet-sized NFC card (larger surface, better range, fits anywhere).
Stop negotiating
with yourself.
It's a weirdly physical feeling. Quiet, almost. You'll like it.