# IBJJF vs MatClock

The clearest difference is price: IBJJF at Free against MatClock's $1.99. IBJJF also leads on iOS requirement (15.1 vs 17.0). MatClock's advantage is update cadence (every 4 days vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

IBJJF is free to download; MatClock costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IBJJF ships an update every 10 months, MatClock every 4 days. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | IBJJF | MatClock |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 | Every 10 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 33 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [International BJJ, Inc](https://appshunter.io/developer/1819571918) | [Lucas Moeller](https://appshunter.io/developer/1857074865) |

## What reviewers say

### 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


### MatClock

[App page](https://appshunter.io/ios/app/matclock/id6755897619)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IBJJF free?

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

### Is MatClock free?

MatClock costs $1.99, with no in-app purchases.

### Do IBJJF or MatClock have ads?

Neither IBJJF nor MatClock shows ads.

### Which is updated more often, IBJJF or MatClock?

IBJJF ships an update every 10 months, and MatClock every 4 days. Most recently, IBJJF was updated on October 16, 2026 and MatClock on October 2, 2026.

---

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