LockNote: Secure Private Notes

mikdroid

Contains adsIn-app purchases

About this app

LockNote (formerly Secure Memo) is your private, offline notepad designed to keep your sensitive thoughts, passwords, and personal data completely safe.

Protected by industry-standard AES encryption, your secret notes and ideas never leave your phone. LockNote gives you 100% digital privacy—no cloud tracking, no external servers, and zero data collection. Only you hold the key to unlock your personal diary and encrypted vault.

🔒 TOTAL PRIVACY & ADVANCED SECURITY
• 100% Offline & Private: Your data stays exclusively on your device. No external servers, no cloud breaches, no tracking, and zero data collection.
• Biometric & Password Lock: Access your secret notes instantly using your fingerprint, face recognition, or a master PIN / password.
• Anti-Peeping Protection: Automatically prevents screenshots, screen recordings, and obscures note previews in the Android "Recent Apps" screen to stop shoulder-surfing.
• Intrusion Alerts & Brute-Force Protection: Detects unauthorized login attempts, displays detailed intrusion alerts with timestamps, and locks the app automatically after failed password attempts.
• Smart Session Timeout: Automatically logs out and locks the app after a customizable period of inactivity, keeping your data secure even if your phone is left unlocked.

🎨 FLEXIBLE NOTE ORGANIZATION & CUSTOM LAYOUTS
• Drag & Drop Reordering: Easily reorder and organize your notes in any position simply by pressing and dragging the dedicated note handle.
• List & Grid Views: Switch seamlessly between a single-column list view and a modern two-column grid layout to suit your visual style.
• Color-Coded Priorities: Categorize your notes by marking them as "Normal" or "Important", each with distinct, fully customizable color highlights.
• Instant Search & Smart Filters: Find any note in seconds. Our powerful search engine scans your notes and highlights matching keywords instantly, while smart filters let you view only important or normal notes.

⚙️ HIGHLY CUSTOMIZABLE USER EXPERIENCE
• Text & Display Tuning: Customize the text font size and choose exact note preview line limits in the list view for maximum readability.
• Custom Color Themes: Personalize the exact colors for your normal and important note priority badges.
• Customizable Auto-Logout: Set your preferred inactivity session timer according to your personal workflow and security needs.

💾 ENCRYPTED BACKUP & EASY RECOVERY
• Encrypted Backup Export: Generate a highly secure, password-protected backup file of your encrypted notes. Save your backup file safely to your PC or personal cloud storage (Google Drive, OneDrive, Dropbox).
• Seamless Data Transfer: Safely restore your encrypted notes when switching to a new phone or device without losing any data.

💡 WHAT YOU CAN STORE IN LOCKNOTE:
• Private Journal & Daily Diary: Write down personal thoughts, ideas, and memories with complete peace of mind.
• Password & Account Keeper: Safely store login credentials, PINs, Wi-Fi keys, and confidential accounts offline.
• Financial & Secret Notes: Keep credit card details, bank info, tax notes, and private documents secure.
• Work & Study Ideas: Draft confidential projects, business plans, and sensitive meeting notes.

Take back full control of your digital privacy. Download LockNote today for a fast, customizable, and 100% secure offline notepad experience!

Ratings and reviews

very confusing if you don't know how it works. Previous system was much simpler. To try and 'edit' an existing note is the confusing part. Are there instructions? I fear deleting a not in error!

I echo the reviewer who said the editing window is too small, scrolling is difficult. That's why I changed it to 4 stars. Please, please make the editing screen bigger. PLEASE Thank u for the updates. The app is really good.

with updates, looks better and more flexible. works great. couldn't ask for more.

What’s new

- Reduced banner size for a better user experience in the free version.
- Bug fixes for improved stability.