SecondBrain: AI Notes & Voice

Memo, planner, journal & lists

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

The ultimate AI note app. Capture anything — text, voice or photo — then just ask, and your second brain finds it. Notes, lists, reminders & more. Capture anything in seconds. Find it forever — just by asking. Second Brain is the note-taking app that does the organizing for you. Write a note, build a list, or simply say what's on your mind — by text or voice. No folders. No tags. No filing. Later, ask in plain words and your second brain remembers. Tell it "Jane's favorite food is lasagna." Weeks later, ask "what's Jane's favorite food?" — and it answers "lasagna." Say "dentist tomorrow at 2" and it reminds you and puts it on your agenda. That's the whole idea: capture by meaning, find by meaning. CAPTURE ANY WAY YOU THINK • Classic notes & checklists for ideas, groceries, trips, and projects • Text or voice messages — dump a thought in seconds; voice notes transcribe themselves • Photos, links, places & people — saved with a tap Messy is fine. You never have to organize a thing. JUST ASK — IN PLAIN LANGUAGE "When's my dentist appointment?" "Where was that restaurant?" "What did I decide about the project?" Ask anything and get a clear answer pulled from everything you've saved. It's search that finally understands you. REMINDERS & A CALM AGENDA Say "remind me to call Mom on Friday" or "dentist tomorrow at 2," and it lands on your agenda. See everything coming up in one clean, scheduled view. PEOPLE & TOPICS, ORGANIZED FOR YOU Second Brain quietly recognizes the people and topics you mention — like Jane, or your dentist — and gathers everything about each one in a single place. Tap a name to see every note, message, and memory connected to it. Your own knowledge graph, built automatically. ONE CHAT, ALL YOUR KNOWLEDGE Ask in chat and it draws not only on your past conversations but on your notes and lists too — so every answer uses everything you know. YOUR DAY & WEEK, SUMMED UP Get an AI daily or weekly recap of what you captured and did — your own intelligent journal, written for you. ONE SEARCH FOR EVERYTHING Search across every message, note, and list from a single screen. If you saved it, you'll find it in seconds. FREE TO START — PREMIUM TO GO FURTHER Second Brain is free to use: capture text notes, save links, and ask up to 5 questions a day (up to 500 characters each). Second Brain Premium unlocks the full experience: • Unlimited daily capture and questions, with no length limit • Voice notes with automatic transcription • Photo attachments with auto-captions • AI answers that draw on all your notes and lists at once • Automatic people & topics organization — your own knowledge graph • Daily & weekly AI recaps of what you captured Premium is an auto-renewing subscription, offered monthly or yearly; the price is shown in the app before you confirm. Payment is charged to your Apple ID at purchase, and it renews automatically unless turned off at least 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. PRIVATE BY DESIGN Your memories are yours. To understand them and answer your questions, what you capture (text, voice, photos) is sent securely to our AI providers — Anthropic (Claude) and OpenAI — who process it solely to run the app. Your data is never sold and never used to train AI models. Delete anything, anytime, and it's gone for good. Perfect for note-taking, voice notes, journaling, to-do lists, reminders, meeting notes, ideas, and building a personal knowledge base — all in one app. Capture your life. Ask it anything. Never forget again. Terms of Use: https://www.secondbrainnotes.app/terms.html Privacy Policy: https://www.secondbrainnotes.app/privacy.html

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The developer, Gokhan Celikkaya, 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 Linked to You

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

    • Location
    • Contact Info
    • User Content
    • Identifiers

  • Data Not Linked to You

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

    • Diagnostics

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

Accessibility

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

Information

Seller
  • Gökhan Çelikkaya
Size
  • 17.8 MB
Category
  • Productivity
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
  • English and Turkish
Age Rating
13+
In-App Purchases
Yes
  • Second Brain Yearly Subscription $34.99
  • Second Brain Monthly Subscription $5.99
  • Learn More
Copyright
  • © 2026 Gökhan Çelikkaya
  • Privacy Policy