Calculator Lock: Hide Files

🔒 Calculator Locker — Hide Photos, Videos & Files Behind a Real Calculator

Keep your private photos, videos, documents, and notes safe from prying eyes. Calculator Locker looks and works exactly like a normal calculator — but enter your secret PIN and it unlocks a fully encrypted private vault, invisible to anyone just glancing at your phone.

No confusing setup. No compromise on privacy. Just a calculator that does math… and a lot more.

⚡ HOW IT WORKS
Open the app and it's a real, functional calculator — add, subtract, multiply, divide like any other. Enter your secret PIN followed by "=" and your private vault unlocks instantly. Anyone else who opens the app just sees a calculator.

🔐 MILITARY-GRADE ENCRYPTION
Every photo, video, audio file, document, and note you store is encrypted with AES-256 using your device's secure Android Keystore. Files are only decrypted in memory when you view them — never stored unencrypted on disk. Even if your device is compromised, your vault stays unreadable.

📁 HIDE ANYTHING
• Photos & Videos — securely lock away your personal gallery
• Files & Documents — PDFs, spreadsheets, downloads, anything
• Audio — voice memos and private recordings
• Notes — write and store private, encrypted text notes

🗂️ ORGANIZE YOUR WAY
Create custom folders to organize hidden files exactly how you want. Long-press to multi-select and bulk move, export, or delete items in seconds. Batch import shows live per-file progress so you always know what's happening.

🔑 NEVER GET LOCKED OUT
Forgot your PIN? No problem. Calculator Locker generates a secure 12-character recovery code when you set up your vault. Save it somewhere safe, and you can reset your PIN anytime without losing a single file — even we can't recover your vault without it, because we can't see inside it either.

🛡️ SCREENSHOT & SCREEN RECORDING PROTECTION
Your vault content is protected from screenshots, screen recording, and preview thumbnails in the recent apps switcher — so your private files stay private, even if someone grabs your phone.

🖼️ BUILT-IN MEDIA VIEWER
View your hidden photos in a smooth slideshow and play videos directly inside the vault — no need to decrypt and export files just to look at them.

✨ CLEAN, MODERN DESIGN
A polished, professional interface makes managing your private space actually pleasant — fast, intuitive, and clutter-free.

WHY CALCULATOR LOCKER?
✔ Real, working calculator — not just a fake icon
✔ AES-256 encryption via Android Keystore
✔ Secure PIN recovery — never lose access to your files
✔ Screenshot & recents protection
✔ Encrypted notes, not just media
✔ Folder organization + bulk actions
✔ No account, no login, no cloud upload — everything stays on your device
✔ No ads interrupting your privacy

YOUR PRIVACY, YOUR DEVICE, YOUR CONTROL
Calculator Locker never uploads your files anywhere. Nothing leaves your phone. There's no account to create and no server involved — your encryption key lives in your device's secure hardware-backed Keystore, not on the internet.

Whether you want to keep personal photos away from friends borrowing your phone, protect sensitive documents, or just enjoy having a genuinely private space on your device, Calculator Locker gives you real security wrapped in an app nobody would think twice about.

Download Calculator Locker today and take back control of your privacy.