# Fleeting Note vs Cerebro

The clearest difference is in-app purchases: Fleeting Note at none against Cerebro's 2. Fleeting Note also leads on iOS requirement (17.6 vs 26.0). Cerebro's advantage is update cadence (every 3 weeks vs every 21 months). On price, ads and device support there is nothing between them.

Both are free to download. Cerebro sells 2 in-app purchases, starting at $9.99 per month. Fleeting Note asks for nothing beyond the download.

Fleeting Note ships an update every 21 months, Cerebro every 3 weeks. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fleeting Note | Cerebro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cerebro-your-second-brain/id6761205619/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 1 MB | 87 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [俊 林](https://appshunter.io/developer/1511359065) | [Henry PL, LLC](https://appshunter.io/developer/1470349167) |

## What reviewers say

### Fleeting Note

[App page](https://appshunter.io/ios/app/fleeting-note-n/id1614606842)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Cerebro

[App page](https://appshunter.io/ios/app/cerebro-your-second-brain/id6761205619)

This AI-powered thought journal helps you capture ideas and resurfaces forgotten thoughts with context. It automatically extracts to-dos and uses semantic search to find entries based on meaning, not just keywords. Designed for those who struggle with organization, it removes friction by letting AI handle the sorting.

**Highlights:** AI-powered thought processing, Automatic to-do extraction, Semantic search for ideas, Resurfaces forgotten thoughts, Frictionless writing experience, No folders or manual organization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cerebro Pro | $9.99 | per month |
| Cerebro Pro | $79.99 | per year |


## Frequently asked questions

### Is Fleeting Note free?

Fleeting Note is free to download, with no in-app purchases.

### Is Cerebro free?

Cerebro is free to download, with in-app purchases available.

### Do Fleeting Note or Cerebro have ads?

Neither Fleeting Note nor Cerebro shows ads.

### Which is updated more often, Fleeting Note or Cerebro?

Fleeting Note ships an update every 21 months, and Cerebro every 3 weeks. Most recently, Fleeting Note was updated on October 5, 2026 and Cerebro on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*