Notesnook: Private notepad

Notesnook: Private notepad

Encrypted notes & secure vault

672 ratings
399 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • January 14, 2021
  • October 9, 2026

Features

Notesnook: Private notepad screenshot #1 for iPhone
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About

This open-source app offers secure, encrypted note-taking and organization across all your devices. It features a robust editor, to-do lists, and a private journal with advanced security to protect your personal information.

✓Military-grade encryption
✓Cross-platform synchronization
✓To-do lists and task management
✓Private journal with media support
✓Rich text and Markdown editor
✓Notebook organization
✓App lock with fingerprint support
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What users say about Notesnook

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+1

What's New in Notesnook

3.4.14

October 9, 2026

- Added localization and multi-language support - Minor bug fixes and improvements Thank you for using Notesnook!

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20

Subscriptions & In-App Purchases

Notesnook Pro

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$4.491 Month
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User reviews

Quite good

App is very smooth and functional and works very well together with the web app, which i use a ton as well, when I’m not at my phone

Good cross platform support

I needed something that work across platforms and had a good web based application. Notesnook fit the bill.

Web app is just like the desktop app. Phone app syncs and displays well.

I can use KaTeX for equations.

Minor gripe. Though it uses Markdown, it not fully Markdown compatible. Also I wish there were more hot keys for bullet points vs numbering. With the web app I need to move the mouse to select this.
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Best Encrypted Note app, but could use some more editing tools!

I really like the app! I’ve been using it on my phone, ipad, and my computer and it’s been pretty nice and easy to use. It also has some of the most text editing tools based on the other apps that I tried, but I still wish there was more.

I hope at some point in the future to have more than just three fonts, maybe some adjustable text spacing, and more table customization, along with other small QOL updates.

Other than that, it is a great app and I will be upgrading my plan after using it for a little longer!
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almost the app im looking for

it ticks all the boxes for why i moved from onenote and keep, although id like to see an option where the notes can be previewed in tiles like on google keep. overall, 10/10

Privacy first note app, it’s great

This is a great app for writing down important information, including some private thoughts that you’d like to remember for later, and not have to worry about who can access it. I highly recommend using this app.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Crashes on launch on older iOS devices

Bug

Sync issues leading to data loss

Bug

Unreliable login and verification process

Bug
✨

Requested Features

5 requests

Improved search functionality

Feature

Reminders and calendar integration

Feature

Handwriting and drawing support

Feature

Multilingual support

Feature

Improved table and spreadsheet features

Feature

FAQ

What is Notesnook?

Notesnook is an open-source application designed for private note-taking and organization. It offers robust security features like military-grade encryption to protect your notes, to-do lists, and journal entries. The app is fully cross-platform, allowing seamless syncing between your computer, tablet, and mobile devices.

How does Notesnook protect my privacy?

Notesnook prioritizes your privacy with advanced encryption algorithms like XChaCha20-Poly1305 & Argon2, which are stronger and more secure than AES256. All notes are encrypted by default on your device before being stored or synced, ensuring that even the app developers cannot access your content.

Can I use Notesnook on multiple devices?

Yes, Notesnook is fully cross-platform and supports syncing notes across all your devices, including computers, tablets, and mobile phones. This ensures you always have access to your notes, to-do lists, and journal entries regardless of the device you are using.

What are the key features of Notesnook?

Key features include military-grade encryption for ultimate privacy, seamless cross-platform synchronization, a rich text and Markdown editor, to-do list functionality, a private journal with support for photos and videos, notebook organization, and an app lock with fingerprint access.

Is Notesnook free to use?

Notesnook is available for free and offers in-app purchases for additional features or enhancements. The core functionality, including secure note-taking and syncing, is accessible without cost.