Lockbook: Note-taking Platform

In-app purchases
5.0
8 reviews
500+
Downloads
Content rating
Teen
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About this app

Privacy shouldn't be a compromise. That's why we created Lockbook, a secure note-taking app that lets you record, sync, and share your thoughts. We collect no personal information and encrypt your notes so even we can't see them. Don't take our word for it: Lockbook is 100% open-source: https://github.com/lockbook/lockbook

Polished:
We built Lockbook for everyday use because we use Lockbook every day. Our native apps feel at home on every platform, and we've gone the extra mile to ensure they're fast, stable, efficient, and delightful to use. We can't wait for you to try them.

Secure:
Keep your thoughts to yourself. Lockbook encrypts your notes with keys that are generated on your devices and stay on your devices. Only you and the users you share your notes with can see them; no one else, including infrastructure providers, state actors, or Lockbook employees, can access your data.

Private:
Know your customer? We sure don't. We don't collect your email, phone number, or name. We don't need a password. Lockbook is for people with better things to worry about than privacy.

Honest:
Be the customer, not the product. We sell a note-taking app, not your data.

Developer Friendly:
The Lockbook CLI will fit right into your favorite chain of piped-together Unix commands. Search your notes with fzf, edit them with vim, and schedule backups with cron. When scripting doesn't cut it, use our Rust library for a robust programmatic interface.

Website: https://lockbook.net
Updated on
Dec 16, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

5.0
8 reviews
Bradly VanDerStad
November 23, 2025
Great solution for private note taking
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Ahmed Shaikh
October 4, 2025
very easy to use and performs well!
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What’s new

Release notes on https://github.com/lockbook/lockbook/releases/tag/25.12.16

App support

About the developer
LOCKBOOK LLC
parth@lockbook.net
2115 Amwell Rd Somerset, NJ 08873 United States
+1 973-809-0571