MatTimer vs IBJJF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MatTimer
This app provides a customizable timer designed for combat sports like Jiu-Jitsu and MMA. It helps athletes track training and rest periods, allowing them to focus on improving their skills. It's a simple yet essential tool for practitioners of all levels.
- Jiu-Jitsu and MMA timer
- Track roll time
- Track rest time
- Customizable settings
- Clear display
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A round timer for the mat. Set your work time, your rest time and how many rounds — then put the phone down and train. MatTimer counts the round in numbers big enough to read from across the room, and colours the whole screen so you know where you are at a glance: green for work, red for rest. A ten-second lead-in gives you time to touch hands before the first round starts. WHAT IT DOES • Work, rest and round count, all adjustable • A bell at every round change, so you never have to look • An optional ten-second warning before each round ends — set it for work, rest, or both • Save the sessions you use often and switch between them in a tap • The screen stays awake while the timer runs ON YOUR WRIST A full Apple Watch app, not a remote control. Start, pause and stop from the watch, with the same round readout and the same colours. Set your rounds there too. ON YOUR HOME SCREEN A widget shows the round you are in and the time left, without opening the app. IT KEEPS YOUR PLACE Leave the app mid-round and it picks up exactly where it should — right round, right phase, right second. While you are away, notifications tell you when each round turns over. BUILT FOR TRAINING, NOT FOR SCROLLING No account. No subscription. No ads. Nothing to read. Open it, start it, roll.
IBJJF
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.
- Digital membership ID card
- Athlete identification
- Event check-in assistance
- Apple Wallet integration
- Offline access
- Push notifications for updates
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The official mobile app of the International Brazilian Jiu-Jitsu Federation (IBJJF) offers athletes a convenient and reliable way to access and manage their membership information. Serving as a digital version of the IBJJF membership ID card, the app displays key details such as the athlete’s name, affiliated academy, and current belt rank, making athlete identification and event check-ins more efficient while providing access to exclusive athlete benefits. To enhance this experience, the app integrates with Apple Wallet, allowing athletes to securely add their IBJJF membership card and access it anytime, even offline, for faster identification at IBJJF events. Featuring push notifications, the app actively reminds athletes about important account updates, such as upcoming membership expirations, ensuring uninterrupted access to IBJJF services and benefits. With these features, the IBJJF app provides a dynamic and connected experience that keeps athletes informed, engaged, and competition-ready.
Screenshots
Verdict
The clearest difference is rating: MatTimer at 5.0 against IBJJF's 3.0. MatTimer also leads on update cadence (weekly vs every 10 months). IBJJF's advantage is ratings volume (7 vs 1) and iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MatTimer holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: IBJJF has 7 ratings behind it against 1, so its average is the more settled of the two.
MatTimer ships an update weekly, IBJJF every 10 months. The most recent releases landed on September 21, 2026 and October 1, 2026 respectively.
| Parameter | MatTimer | IBJJF |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.0 (7 ratings) |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Weekly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 6 MB | 33 MB |
| Age rating | 4+ | +4 |
| Developer | Ravil Khusainov | International BJJ, Inc |
Customer experience
MatTimer
IBJJF
In-app purchases
MatTimer
No in-app purchases
IBJJF
No in-app purchases








