Calculator Lock

Calculator Lock looks like a clean, everyday calculator fast, simple, and easy to use. Behind the calculator interface, it also includes a private space where you can store personal photos, videos, and files.

Key features
- Calculator you can actually use: quick input, clear display, and responsive buttons.
- PIN access (4–8 digits): your private space opens only when you enter your PIN.
- Encrypted storage: your items are encrypted on your device.
- Photos & videos supported: import media from your gallery and view it inside the app.
- Save back to gallery: export photos/videos to your gallery when you choose.
- Large file support: big videos are handled with chunked encryption to reduce crashes.
- Change PIN / reset vault: update your PIN anytime, or reset to start fresh.

Important notes
- If you forget your PIN, your encrypted items can’t be recovered.
- Performance may vary with very large files depending on your device.