Calculator Lock - Hide Photos

Calculator Lock is the ultimate privacy app and secret photo vault designed to hide photos, lock videos, back up private media to the cloud, write secret notes, and hide confidential contacts & passwords behind a fully functional scientific calculator.

To anyone else, this app looks and works just like a standard everyday calculator. Only when you enter your secret numeric PIN and press "=" — or authenticate with your fingerprint — does your encrypted private gallery and file hider unlock.

🔒 WHY CHOOSE CALCULATOR LOCK?
• Custom Calculator & Shield Icons: Personalize your home screen with 15 custom launcher icon styles (5 sleek 1-2-3 keypad themes, 5 geometric cyber-shield icons, and 5 padlock-shield emblems). When opened, it functions as a real working math calculator until you enter your secret PIN.
• Complete Offline & Cloud Freedom: Your hidden files stay encrypted on your device by default, with optional zero-knowledge Google Drive backup so you never lose a memory when switching phones.

✨ KEY PRIVACY OUTCOMES & FEATURES:

☁️ Encrypted Google Drive Cloud Backup
• Never worry about losing hidden photos or videos if your phone is lost, damaged, or upgraded.
• Enable incremental cloud sync with optional AES-256 zero-knowledge encryption — your private files are encrypted on your device before reaching Google Drive.

📸 Hide Photos & Secret Gallery Lock
• Move personal selfies, couple memories, and sensitive pictures out of your public gallery into an invisible photo vault.
• Automatically delete original files from your main photo roll after importing and organize them into custom secret albums.

🎬 Lock Videos & Built-in 4K Media Player
• Securely hide private videos of any size or format (MP4, MKV, AVI, MOV) from snoopers.
• Watch smoothly inside the built-in hardware-accelerated video player with gesture controls for brightness, volume, and playback speed without unhiding files.

🕵️ Intruder Selfie & Break-In Email Alert
• Curious friends or snoopers trying to guess your PIN? Calculator Lock silently captures a front-camera photo of anyone who enters a wrong password.
• View intruder timestamps in your security log or receive automatic email alerts with the intruder's photo attached.

🌐 Private Incognito Browser & Video Downloader
• Browse sensitive websites with zero history, zero cookies, and automatic session clearing on exit.
• Auto-detect and download videos from web pages directly into your locked vault with multi-thread resumable downloads.

📝 Secret Notes & Color-Coded Private Diary
• Write personal diaries, secret date ideas, hotel reservations, and private memos in a beautiful 2-column staggered grid.
• Customize notes with 8 pastel color themes, pin important memos to the top, search instantly by title or content, and rely on smart auto-save so you never lose a word.

👤 Secret Contacts & Hidden VIP Address Book
• Keep confidential VIP contacts, personal connections, and private phone numbers completely separate from your phone's public address book.
• Import contacts or add them manually with photos and private notes, and place direct phone calls or send SMS messages straight from inside your locked vault.

🔑 Encrypted Password Wallet
• Safeguard bank account details, credit cards, e-banking PINs, dating app logins, social networks, and email accounts in a categorized Password Manager with 1-tap clipboard copy and show/hide toggle.

Download Calculator Lock - Hide Photos today and enjoy total peace of mind knowing your personal photos, videos, notes, and contacts remain for your eyes only.