Second Brain: Notes&Knowledge
Personal Knowledge Manager
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Your offline knowledge manager. No ads, no tracking, no account required.
Second Brain is your offline-first personal knowledge management app. Capture every idea, note, and insight — and never lose a thought again.
No ads. No tracking. No account required. Your data stays on your device.
FEATURES:
• Rich Notes — Write with Markdown support, add images, link notes together
• Collections — Organize notes into collections with icons and colors
• Tags — Tag anything for instant filtering
• Daily Notes — One note per day, automatically created
• Goals — Track personal goals with milestones and progress
• Book Notes — Capture key takeaways from books you read
• Quotes — Save your favorite quotes
• Knowledge Graph — See how your ideas connect visually
• Bi-directional Links — Link notes and see backlinks automatically
• Full-Text Search — Find anything instantly
• Favorites & Archive — Star important notes, archive the rest
• Quick Capture — Capture thoughts from the home screen widget
• Face ID / Touch ID — Lock your app for privacy
• iCloud Backup — Optional, off by default
• Export — PDF, CSV, Markdown
• 15 Languages — English, Turkish, Spanish, German, French, Italian, Portuguese, Dutch, Polish, Arabic, Japanese, Korean, Chinese, Russian
PRIVACY FIRST:
Second Brain collects zero data. No analytics, no tracking SDKs, no servers. Everything lives on your device.
PREMIUM (one-time purchase):
Unlock unlimited notes, collections, Knowledge Graph, exports, Face ID, and home screen widgets with a single lifetime purchase.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Selahattin Bozat, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Selahattin Bozat
- Size
- 26.2 MB
- Category
- Productivity
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Second Brain Premium $9.99
- Copyright
- © 2026 Selahattin Bozat