# 4Trainers vs IBJJF

The clearest difference is update cadence: 4Trainers at weekly against IBJJF's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

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

4Trainers ships an update weekly, IBJJF every 10 months. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 4Trainers | IBJJF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (7 ratings)](https://appshunter.io/ios/app/ibjjf/id6747050290/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 months |
| Monetization | — | Free |
| Size | 113 MB | 33 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | +4 |
| Developer | [DENIS BETTO](https://appshunter.io/developer/1628244147) | [International BJJ, Inc](https://appshunter.io/developer/1819571918) |

## What reviewers say

### 4Trainers

[App page](https://appshunter.io/ios/app/4trainers/id1628244145)

**Features:** macOS Compatibility

**In-app purchases:** none


### IBJJF

[App page](https://appshunter.io/ios/app/ibjjf/id6747050290)

This official sports federation app provides athletes with a digital membership card, displaying key details like rank and academy. It integrates with digital wallets for easy offline access and sends notifications for important account updates.

**Highlights:** Digital membership ID card, Athlete identification, Event check-in assistance, Apple Wallet integration, Offline access, Push notifications for updates

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

**In-app purchases:** none


## Frequently asked questions

### Is 4Trainers free?

4Trainers is free to download, with no in-app purchases.

### Is IBJJF free?

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

### Do 4Trainers or IBJJF have ads?

Neither 4Trainers nor IBJJF shows ads.

### Which is updated more often, 4Trainers or IBJJF?

4Trainers ships an update weekly, and IBJJF every 10 months. Most recently, 4Trainers was updated on October 7, 2026 and IBJJF on October 16, 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.*