Encrypted Notebook

LongTime Dev

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About this app

A lightweight and privacy‑focused encrypted notebook designed to keep your personal information safe. All notes are encrypted and stored locally on your device—never uploaded, never shared, and never synced to any server.

1. Secure Local Encryption
Every note is protected with AES encryption. Opening an existing file requires a password, ensuring that only you can access your private content.

2. Fast and Seamless Editing
Enjoy a clean and distraction‑free writing experience. When editing an existing encrypted file, the app automatically uses your original password to save changes—no need to enter it again.

3. Smart File Management
Notes are automatically sorted by last modified time

Create, edit, and rename encrypted files

Renaming a note creates a new encrypted file and safely removes the old one

All data stays on your device for maximum privacy

4. 100% Offline & Privacy‑First
This app does not collect personal data, does not require internet access, and does not use cloud storage. All encryption and decryption happen directly on your device, giving you full control over your information.

5. Perfect For
Personal diaries

Private reminders

Sensitive information

Secure offline note‑taking

If you need a secure, lightweight, and easy‑to‑use encrypted notebook, this app is built for you.

What’s new

Record daily note with password protect