IBJJF vs Ossify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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.
Ossify
Read full descriptionHide full description
Ossify is the home for Brazilian Jiu-Jitsu. Built for the people who actually train — athletes, coaches, gym owners — Ossify connects every mat, every round, and every promotion in one place. For athletes — free, forever. • Find a gym anywhere in the world on the discovery map • Drop in to listed gyms while traveling, with one tap • Track every class, every round, every belt promotion • See your training history, mat time, and progression at a glance • Join your home gym, view the schedule, and check in to class • Log a session you forgot to check into, up to a week later • Get announcements from your coaches For gym owners — everything, free. Every gym gets a page on the discovery map — and the full toolkit to run it: • Member roster with belt ranks, attendance, and contact info • Class schedule with capacity, instructors, and check-ins • Drop-in approvals from visiting practitioners • Belt promotion tracking and history • Gym announcements pushed to every member • Membership start/end dates, with freeze and resume • A curated links section for your members • Join request approvals • Verified badge once your listing is approved Everything in Ossify is free — there are no paid tiers, no subscriptions, and nothing to buy. Designed for travel. Whether you’re rolling in São Paulo, Tokyo, or your home academy on a Tuesday night, Ossify keeps your training in one feed. One platform. Every mat. Privacy first. Email-only sign-in. No password, no social tracking. Your training history is yours. Pricing Ossify is free to download and use, for athletes and for gyms. There are no in-app purchases. Terms: https://ossify.app/en/terms Privacy: https://ossify.app/en/privacy Oss, mat. Oss, gym.
Screenshots
Verdict
The clearest difference is update cadence: Ossify at every 3 weeks against IBJJF's every 10 months. On price, ads, in-app purchases and device support 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.
IBJJF ships an update every 10 months, Ossify every 3 weeks. Both last shipped on October 30, 2026.
| Parameter | IBJJF | Ossify |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (8 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 10 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 33 MB | 50 MB |
| Age rating | +4 | 12+ |
| Developer | International BJJ, Inc | PIOTR PESTKA |
In-app purchases
IBJJF
No in-app purchases
Ossify
No in-app purchases









