# Second Brain Note vs Ground Control Chat

The clearest difference is in-app purchases: Ground Control Chat at none against Second Brain Note's 1. Ground Control Chat also leads on update cadence (weekly vs every 2 months) and iOS requirement (17.0 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Second Brain Note sells 1 in-app purchase, starting at $4.99 per month. Ground Control Chat asks for nothing beyond the download.

Second Brain Note ships an update every 2 months, Ground Control Chat weekly. The most recent releases landed on September 18, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Second Brain Note | Ground Control Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/second-brain-note/id6753705529/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Subscription | — |
| Size | 12 MB | 3 MB |
| Requires iOS | 26.4 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Chandler Mosteller](https://appshunter.io/developer/1671357283) | [LASTRES SANCHO CARLOS ANDRES](https://appshunter.io/developer/1895690026) |

## What reviewers say

### Second Brain Note

[App page](https://appshunter.io/ios/app/second-brain-note/id6753705529)

Organize your thoughts and tasks with a structured knowledge workspace. Capture ideas, visualize connections, and plan your days effectively. Streamline information collection and turn it into actionable insights for work, school, or personal life.

**Highlights:** Hierarchical idea capture with Brain Tree, Visual thinking with Mind Map, Flexible page-based writing in Notebooks, Goal tracking with Milestones and tasks, Daily planning with Calendar time boxing, Cost tracking for expenses, Personal knowledge library creation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro + | $4.99 | per month |


### Ground Control Chat

[App page](https://appshunter.io/ios/app/ground-control-chat/id6791229853)

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

**In-app purchases:** none


## Frequently asked questions

### Is Second Brain Note free?

Second Brain Note is free to download, with in-app purchases available.

### Is Ground Control Chat free?

Ground Control Chat is free to download, with no in-app purchases.

### Do Second Brain Note or Ground Control Chat have ads?

Neither Second Brain Note nor Ground Control Chat shows ads.

### Which is updated more often, Second Brain Note or Ground Control Chat?

Second Brain Note ships an update every 2 months, and Ground Control Chat weekly. Most recently, Second Brain Note was updated on September 18, 2026 and Ground Control Chat on September 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.*