LockFold: Folder & File Lock

LockFold is a simple folder lock and file encryptor that keeps your private photos, videos and documents safe – on your phone, in Google Drive or in Dropbox. No account, no ads, no internet access.

🔒 TWO WAYS TO PROTECT YOUR FILES
- Lock Folder – encrypt a whole folder and everything inside it, including file names and subfolders. A private, password-protected vault for photos, IDs and documents.
- Lock Files – encrypt only the files you choose, right where they are. The folder and your other files stay normal.

☁️ SAFE EVEN IF YOUR CLOUD ACCOUNT IS HACKED
LockFold encrypts files on your phone before Google Drive or Dropbox ever sees them. Someone who gets into your cloud account, your computer or your phone only sees scrambled data. Folder encryption and file encryption happen entirely on your device.

🛡️ STRONG, PROVEN ENCRYPTION
- AES-256-GCM encryption for every file
- Argon2id password protection
- Fingerprint or face unlock (optional)
- Every file is checked after encryption – originals are removed only when the locked copy is verified

🔑 NEVER LOCKED OUT
- A recovery key for every password, in case you forget it
- A READ ME file in every locked folder explains how to get your files back
- Uninstalling the app never loses your files – everything needed to open them stays with them
- Openly documented format and a free recovery tool for computers

🙈 PRIVATE BY DESIGN
- No account, no sign-up
- No ads, no tracking, no data collection
- No internet permission – LockFold cannot send anything anywhere
- Hide LockFold in recent apps and block screenshots (optional)

✨ EASY TO USE
- Lock or open a folder in a few taps
- Open locked photos, videos, PDFs and documents right in the app
- Hide file names or show original names for locked files
- Light, dark and system theme
- Built-in user manual

💎 FREE AND FULL VERSION
The free version includes every feature: 1 locked folder with up to 25 files. Opening, viewing and unlocking your files is always free – you are never locked out of your own files.
LockFold Full is a one-time purchase of $0.99 for unlimited locked folders and files. No subscription, no ads.

Works with folders on your phone, Google Drive and Dropbox. Perfect as a photo vault, private document locker, secure folder or file hider – with real encryption, not just hiding.

Privacy policy: https://sites.google.com/view/lockfold-policy/home
User guide: https://sites.google.com/view/lockfold-instructions/home