# Second Brain - AI Note — Notes, tasks & calendar in one

> Notes, tasks & calendar in one (iPhone/iPad app by kim dahye.)

- Source: https://appshunter.io/ios/app/second-brain-ai-note/id6799343264 (this page in markdown: same URL + `.md`)
- Developer: [kim dahye](https://appshunter.io/developer/1868391710)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 26 MB
- Languages: American English, German (Germany), Japanese, Korean, Chinese (Traditional, Taiwan)
- Released: 2026-08-20
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/second-brain-ai-note/id6799343264/reviews.md

## What is Second Brain?

Manage notes, to-dos, and your schedule in one app.

Capture thoughts as notes, actions as to-dos, and anything with a date on the calendar. No more hopping between apps.

■ Notes

Write fast, organize later. Sort into folders and find anything with search. Share only the notes you choose via a link, and unshare with a single tap.

■ To-Dos

Set due dates and repeat rules. See what's left with D-Day countdowns, and group tasks by category.

■ Calendar

See to-dos and events on the same screen. Switch between month and week views to check how full your week is.

■ Widgets

Check today's tasks from your Home Screen and Lock Screen. See what's left without opening the app.

■ Notifications

Get notified as deadlines approach. Start the day with a morning briefing and wrap up with a daily summary.

■ AI Organize

Pull action items out of long text. Turn copied text into to-dos. Gather past records into a retrospective.

AI features are free up to 3 times per month. To use more, connect your own AI API key.

■ Same content on every device

Notes written on iPhone open on the web too. Sign in once and your content follows you across devices.

■ Privacy

AI features only process text you explicitly send. See the privacy policy for details.
https://docs.ainote.dev/legal/privacy


## Version history (last 2 releases)

### 1.0.1 — 2026-08-22

• Japanese, Traditional Chinese, and German are now supported. Pick one in Settings › Language and the app and widgets follow.
• Change the accent color and the whole app follows. Six presets in Settings › Appearance.
• Fixed tab names and date formats so they follow the language you picked.

### 1.0.0 — 2026-08-20

No release notes.

## More apps by kim dahye

- [Keeps - 임대차계약서 보관·부동산 계약 관리](https://appshunter.io/ios/app/keeps/id6759523354)
- [TripHelper - AI 여행 기록/계획/정산](https://appshunter.io/ios/app/triphelper-ai/id6759523384)
- [로컬 자소서 - 암호화 / 취준 캘린더](https://appshunter.io/ios/app/id6760254665)
- [로컬영수증 - 개인사업자 지출관리](https://appshunter.io/ios/app/id6760257363)
- [쉬운 대진표 - 테니스 / 배드민턴 (복식, 토너먼트)](https://appshunter.io/ios/app/id6760689542)
- [logi - 간편 로그인](https://appshunter.io/ios/app/logi/id6764028257)

All apps by kim dahye: https://appshunter.io/developer/1868391710

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*