Second Brain
The facts below are what the maker publishes about Second Brain, checked and dated. Our editors have not written about it yet.
Plans and prices
From Second Brain's own pricing page, checked 10 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 5 messages a day · text only · up to 500 characters |
| Pro (monthly) | $4.99 a month | Voice notes with transcription · photos with auto-captions · unlimited messages · answers that draw on everything at once |
| Pro (yearly) | $39.99 a year | Voice notes with transcription · photos with auto-captions · unlimited messages · answers that draw on everything at once |
The facts
Each one read from Second Brain's own pages, with the date it was checked.
What it does
- Answers
- Second Brain answers questions from a user's notes and shows which notes it used.checked 10 Oct 2026
- Capture formats
- Users can capture text, voice notes, and photos in one chat.checked 10 Oct 2026
- Deletion
- The maker says users can delete everything at any time and that deletion is immediate and complete.checked 10 Oct 2026
- Designed for
- The maker describes use cases including parents remembering appointments, travelers recalling restaurants, and homeowners retrieving contractor quotes.checked 10 Oct 2026
- Interface languages
- The app interface is available in English and Turkish.checked 10 Oct 2026
- Lists and reminders
- The app can extract list items and schedule reminders from what users say.checked 10 Oct 2026
- Organization
- The app infers categories and does not ask users to file notes into folders.checked 10 Oct 2026
- Privacy
- The maker says notes are isolated per account, AI processing requires explicit consent before the first note is processed, and notes are not used to train AI models.checked 10 Oct 2026
- Product
- Second Brain is an iPhone notes app that lets users capture thoughts and ask questions about them later in plain language.checked 10 Oct 2026
- Voice
- Voice notes are transcribed in the background.checked 10 Oct 2026
The company
- Maker
- The app is described as developed by one person, Gökhan Çelikkaya.checked 10 Oct 2026
Where it runs
- Photos
- Photos receive captions automatically.checked 10 Oct 2026
Alternatives to Second Brain
- 1

Notion
Free planAndroidiOSWebmacOS8.3From $10 a month - 2

Goodnotes
Free planAndroidiOSWebmacOS8.2From $11.99 a year - 3

HyNote
Free planAndroidiOSWebExtension8.2From $6.66 a month - 4

Mem Agent
Free planiOSWebAPIExtension8.2From $9 a month - 5

Supernotes
Free planAndroidiOSWebAPI8.2From £6 a month - 6

Voicenotes
Free planAndroidiOSWebAPI8.1From $9 a month