# Brain vs SJJIF

Brain and SJJIF are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Brain ships an update every 6 weeks, SJJIF every 2 months. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Brain | SJJIF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sjjif/id6670794033/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 44 MB | 28 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhiro Miyachi](https://appshunter.io/developer/1730505082) | [Sports Jiu-Jitsu International Federation](https://appshunter.io/developer/1767621648) |

## 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


### SJJIF

[App page](https://appshunter.io/ios/app/sjjif/id6670794033)

Manage your sports event registrations and view fight schedules. Discover upcoming events happening near you. This official app is designed for members of the organization.

**Highlights:** Manage event registrations, View fight schedules, Discover upcoming events, Official member app, Event location discovery

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain free?

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

### Is SJJIF free?

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

### Do Brain or SJJIF have ads?

Neither Brain nor SJJIF shows ads.

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

Brain ships an update every 6 weeks, and SJJIF every 2 months. Most recently, Brain was updated on November 12, 2026 and SJJIF on November 4, 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.*