# Ravin: AI Notes, Diary & Wiki — Your AI Second Brain

> Your AI Second Brain (iPhone/iPad app by 骁 刘.)

- Source: https://appshunter.io/ios/app/ravin-ai-notes-diary-and-wiki/id6759511708 (this page in markdown: same URL + `.md`)
- Developer: [骁 刘](https://appshunter.io/developer/1879015296)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 25 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Hong Kong SAR China)
- Released: 2026-04-02
- Data updated: 2026-08-03
- User reviews in markdown: https://appshunter.io/ios/app/ravin-ai-notes-diary-and-wiki/id6759511708/reviews.md

## What is Ravin?

Ravin-AI Notes and Diary
If memory had a shape, it would be a radiant galaxy.

In an age of information overload, we generate countless brilliant sparks of thought every day, only to watch them fade away. Ravin is built to change that. It’s more than a note-taking app; it’s an extension of your senses—an empathetic AI companion that organizes your thoughts effortlessly.

【Why Ravin?】
* Multimodal Smart Capture: Don't worry about the format. Whether it's voice, text, or images, Ravin captures the essence. Our AI automatically fixes ASR errors and extracts key facts, allowing you to record hands-free while walking or driving.
* Visualized Knowledge Galaxy: Break free from traditional folder lists. Ravin transforms every note into a star in your personal galaxy. Using a physics engine to simulate neural connections, you’ll discover how a book quote from two years ago resonates perfectly with today's big idea.
* Empathetic Auto-Diary: At the end of the day, Ravin synthesizes your fragmented footprints into a warm, illustrated diary. It analyzes your emotional undertones and generates unique mood maps to visualize your personal growth.
* Privacy First: Your memories belong to you. Data is synced via iCloud with end-to-end encryption. With full Markdown export support, your knowledge base remains future-proof and truly yours.

【Key Features
*  AI Assistant Ravin: Warm and insightful, it discovers patterns in your records that you might have missed.
*  Nebula Clustering: Automatically clusters related ideas into "Nebulas," helping you build a structured knowledge system.
*  Seamless Sync: Real-time collaboration between iPhone and iPad—your memories are always online.

Start dancing with your Muse. Download Ravin and light up your galaxy of inspiration.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Ravin Pro monthly subscription | $6.99 | per month |
| Ravin Pro yearly subscription | $69.99 | per year |



## Version history (last 5 releases)

### 0.25 — 2026-07-30

Free！

### 0.24 — 2026-07-01

bug fix

### 0.23 — 2026-05-27

bug fix

### 0.22 — 2026-04-27

Multimodal Smart Capture: Don't worry about the format. Whether it's voice, text, or images, Ravin captures the essence. Our AI automatically fixes ASR errors and extracts key facts, allowing you to record hands-free while walking or driving.

### 0.21 — 2026-04-24

*  AI Assistant Ravin: Warm and insightful, it discovers patterns in your records that you might have missed.
*  Nebula Clustering: Automatically clusters related ideas into "Nebulas," helping you build a structured knowledge system.
*  Seamless Sync: Real-time collaboration between iPhone and iPad—your memories are always online.

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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 2026-08-03.*