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Second Brain

Professor Adrian David Cheok Productivity

Capture thoughts by voice or text, then review summaries and to-dos

Downloads
5+
on Google Play
Price
$0.12
No in-app purchases
Updated
Sep 29
2026 · v20260605.1218
Get it onGoogle Play See alternatives

Screenshots

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About Second Brain

Second Brain is a journal for capturing thoughts and organizing plans in one place.

Capture your thoughts
Write an entry or record a voice note on your phone. Voice entries can be transcribed so you can revisit them as text.

Review your day
Browse your journal by date, search entries using text or voice, and choose to generate an AI summary of your day. Review AI-generated text for accuracy.

Keep track of tasks
Add to-dos yourself or review tasks drawn from your journal entries. Mark tasks complete as you go.

Plan with Google Calendar
Optionally connect Google Calendar to create new events from dated plans you capture. Second Brain does not read, edit or delete your existing Google Calendar events.

Find the privacy policy, terms and account deletion information in Settings.

What’s new

Version 20260605.1218 · Updated September 29, 2026

- Create Google Calendar events from the Calendar screen or journal entries. - Improve event and task forms, validation, and error handling. - Add Light, Dark, and System appearance settings. - Add account, privacy, terms, and account-deletion settings. - Second Brain creates requested events; existing events remain managed in Google Calendar.

Alternatives to Second Brain

Looking for apps like Second Brain? Here are 6 similar Android apps on Google Play. The highest rated is Unique: ADHD Planner & Journal (4.7/5), and all 6 are free to download.

Second Brain vs. alternatives
App Rating Price Installs Last updated Compare
Second Brain – $0.12 5+ Sep 29, 2026
Brainway: Beat Procrastination 2.7 / 5 Free 100,000+ Sep 29, 2026 Compare
Unique: ADHD Planner & Journal 4.7 / 5 Free 100,000+ Sep 10, 2026 Compare
WaterDo:To Do List & Schedule 3.9 / 5 Free 500,000+ Nov 13, 2025 Compare
Listok: To do list & Notes 4.1 / 5 Free 100,000+ Aug 18, 2026 Compare
AI Journal Notebook - Reflectr 3.8 / 5 Free 100,000+ Aug 10, 2026 Compare
MindBuddy: Mood Journal & CBT 4.2 / 5 Free 50,000+ Feb 18, 2026 Compare

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