ExtMemo AI Notes

Chat with ideas, E2EE privacy.

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Guest Mode is here! Explore ExtMemo without registration, or sign in instantly with Apple. Your notes stay with you when you upgrade to a full account. Extmemo is the premier external memory system for high-value thinkers. Move beyond the limitations of traditional note-taking. Capture ideas, secure your insights, and leverage AI to recall what matters most—all within a private, encrypted sanctuary. Your data, your sovereignty, your extended intelligence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Why Choose ExtMemo? - Smart Recall: Ask your memory anything and get instant answers based on your own history. - Zero-Knowledge Architecture: Your E2EE notes are accessible only by you. Not even us. - Conflict-Free Collaboration: Edit together within the same chain. Each member modifies their own nodes with zero sync conflicts. - Encrypted Team Sharing: Secure collaboration with Team-Wide E2EE. Your shared group data remains strictly "for your eyes only." - Web App & Desktop Efficiency: Seamlessly switch to our Web App for a powerful, large-screen desktop experience. - No Vendor Lock-in: Take your knowledge with you anytime. Export all your data to standard Markdown with one click. - Frictionless Design: Focus on the spark of the idea, not the interface. - Hyper Todo: Break free from flat checklists with intelligent dependency chains that turn your interconnected notes into an adaptive daily roadmap. Dual-Layer Intelligence & Privacy: 1. AI-Powered Mind Extension Turn your notes into a living conversation. By opting to store general information in our standard secure cloud, our integrated AI learns from your authorized, unencrypted data to answer questions, summarize long threads, and connect dots you might have missed. It’s not just a database; it’s a personalized co-thinker that understands the context of your life. 2. Absolute End-to-End Encryption (E2EE, 0-knowledge) For your "eyes only" assets—private keys, raw journals, or confidential strategies—ExtMemo offers a fortress. Switch to Sovereign Mode (E2EE) to encrypt data directly on your device. We don’t hold the keys, we don’t see your content, and we don’t want to. Even in the event of a breach, your data remains an unreadable cipher. Total privacy, zero compromise. Your thoughts are your power. Keep them smart. Keep them sovereign.

  • 5.0
    out of 5
    1 Ratings

- Guest Mode — Explore ExtMemo without registration You can now start using ExtMemo immediately with Guest Mode. No registration is required, so you can explore the full experience before deciding whether to create an account. With Guest Mode, you can: * Protect your information with end-to-end encryption. * Manage your To-Dos visually and keep track of what needs to be done. * Build Note Chains to continuously update and expand the latest status of your projects, plans, and ideas. * Use AI-powered features to organize and find the information you need. Everything you create in Guest Mode is kept and can remain available when you complete registration and upgrade to a full account. - Sign in with Apple You can now sign in directly with your Apple account for a faster and more convenient registration experience. No need to create and remember another account—just use your Apple account to get started with ExtMemo. We hope these improvements make it easier to discover ExtMemo and start building your personal external memory.

The developer, ExtMemo AI Technology (Beijing) Co., Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data
  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Financial Info
    • Contact Info
    • User Content
    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • ExtMemo AI Technology (Beijing) Co., Ltd
Size
  • 48.7 MB
Category
  • Utilities
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPad
    Requires iPadOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
13+
  • 13+
  • Contains
    Messaging and Chat
    User-Generated Content
    Social Media
In-App Purchases
Yes
  • Monthly $2.99
  • Annually $29.99
  • Linked Note AI $3.99
Copyright
  • © Mi Feng