All apps
Scan before you Can
Your apps stay locked until you physically walk to your QR code and scan it. No willpower tricks, no bypass — the only way in is to get up.
Your apps stay locked until you physically walk to your QR code and scan it. No willpower tricks, no bypass — the only way in is to get up.
Timers end. Breathing exercises finish. But a QR code across the room stays across the room.
Generated once, locally, on your device. Print it, place it, keep it anywhere you like.
Fast, reliable QR scanning. Works in low light, from any angle, any distance that makes sense.
Set a daily lock time (e.g. 22:00). A reminder arrives 15 minutes before.
The QR code is the only key. No backdoor, no emergency unlock, no account to reset.
A satisfying click when you lock, a gentle success pulse when you scan. Small details matter.
No account, no cloud, no server. Even the camera never stores an image.
The app generates a unique QR code locally. Nobody else has it. Nobody else can unlock your apps.
Stick it on the fridge, the front door, your desk at work. Somewhere you have to get up to reach.
One tap. A confirmation dialog stops accidental lockouts — then the shield appears on every blocked app.
When you actually want those apps again, walk over, open the app, scan. Done.
| Feature | Scan before you Can | Opal / one sec / ScreenZen |
|---|---|---|
| Unlock from the couch | ✗ Impossible | ✓ Easy |
| Pricing | One-time purchase | Subscription (most) |
| Server / account | ✓ None | Often required |
| Creates real friction | ✓ Physical movement | ✗ A tap or a wait |
| Privacy | ✓ 100% on device | Varies |