# Brain vs SubmitKit

The clearest difference is in-app purchases: Brain at none against SubmitKit's 2. Brain also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). SubmitKit's advantage is update cadence (weekly vs every 6 weeks). On price and ads there is nothing between them.

Both are free to download. SubmitKit sells 2 in-app purchases, starting at $6.99 per month. Brain asks for nothing beyond the download.

Brain ships an update every 6 weeks, SubmitKit weekly. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Brain | SubmitKit |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 41 MB | 35 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhiro Miyachi](https://appshunter.io/developer/1730505082) | [JAYCO LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1893569647) |

## What reviewers say

### Brain

[App page](https://appshunter.io/ios/app/brain-jiu-jitsu/id6477785304)

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

**In-app purchases:** none


### SubmitKit

[App page](https://appshunter.io/ios/app/submitkit-bjj-tech-library/id6762257582)

Easily save and organize BJJ technique videos from social media into a personal library. AI automatically tags each technique, allowing for quick searching and filtering to build and improve your grappling game.

**Highlights:** Import videos from Instagram and Facebook, AI auto-tagging of techniques, Full-text search of library, Filter by technique tags, Track drilled techniques, Build personalized BJJ game

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubmitKit Pro | $6.99 | per month |
| SubmitKit | $47.99 | per year |


## Frequently asked questions

### Is Brain free?

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

### Is SubmitKit free?

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

### Do Brain or SubmitKit have ads?

Neither Brain nor SubmitKit shows ads.

### Which is updated more often, Brain or SubmitKit?

Brain ships an update every 6 weeks, and SubmitKit weekly. Most recently, Brain was updated on September 29, 2026 and SubmitKit on October 8, 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.*