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Keep an app private on a shared phone

App locks exist. But an app that doesn't look sensitive at all is better - Secret AI hides an on-device AI behind a working cover.

The limits of app locks

Locking an app is better than nothing, but the lock screen itself advertises that something is hidden. Anyone who borrows your phone sees the vault - and asks what's inside.

Security through boring

Secret AI takes the opposite approach: the app is a genuinely working utility on the surface. Nobody asks about a calculator. Only your PIN, entered in the right spot, opens the real on-device AI underneath.

Privacy that survives inspection

Even if someone scrolls your app drawer or opens it themselves, there's nothing to find - the cover actually works. And because the AI runs on-device, there's no cloud history to expose either.

When this makes sense

Work phones with MDM policies, kids grabbing your screen, partners with borrowed devices, shared tablets - anywhere 'private' also needs to look like 'uninteresting'.

Secret AI: Offline Solver app icon

Secret AI: Offline Solver

An ordinary-looking app hiding an on-device AI — unlocked by your PIN.

AI & ChatOn-device AIPrivacy-first

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