OneJitsu vs OSS Academy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OneJitsu
Discover Brazilian Jiu-Jitsu gyms and training partners globally. Book sessions, join events, and connect with practitioners. Gym managers can manage academies, schedules, and communicate with members.
- Find BJJ gyms and training partners
- Book sessions and courses
- Discover events (competitions, seminars)
- Track registered sessions
- Gym management tools
- Integrated messaging for community connection
- Available in 14 languages
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BJJ Practitioners: • Find gyms and training partners near you • Book sessions and courses directly from the app • Join events: competitions, open mats, seminars, ceremonies • Track your registered sessions in "My Events" • Get the latest news from your gym • Create your profile and connect with practitioners worldwide through integrated messaging • Available in 14 languages Gym Managers: • Manage your academy page and schedule • Create and manage sessions with online booking • Communicate live with your members and the OneJitsu community • Create events (competitions, open mats, seminars, parties, ceremonies) • Track attendance and participant registrations • Boost your visibility through the app • Available on web: https://club.onejitsu.com How does the gym managers premium account work? Subscribe to a monthly or yearly membership to enjoy the gym managers features. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Need help? Contact us at contact@onejitsu.com Follow us: https://www.instagram.com/one.jitsu/ Terms of usage and data privacy policy: https://onejitsu.com/s/CGVU-ONEJITSU.pdf
OSS Academy
This platform streamlines the management of combat sports academies, offering tools for class scheduling, attendance tracking, payments, and student progression. It supports academy owners, professors, and practitioners with features for managing finances, teaching, and tracking martial arts journeys.
- Smart class scheduling
- Attendance tracking (QR code)
- Member management with roles
- Integrated payment processing
- Student progression tracking
- Competition management
- Built-in store for merchandise
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OSS Academy is the all-in-one platform to run your combat sports academy, BJJ, Judo, MMA, Grappling, and help your students progress. Classes, payments, attendance, competitions, community: everything lives in one app. FOR ACADEMY OWNERS Run your academy end-to-end: • Smart scheduling with recurring class rules • Attendance tracking, manual or by QR code • Members, roles (student, professor, co-owner) and managed accounts for kids • Approval, blocking and invite-code onboarding • Owner dashboard with KPIs, alerts and quick actions • In-depth analytics: attendance, demographics, instructor performance PAYMENTS & SUBSCRIPTIONS The most complete financial toolkit on the market: • Stripe Connect built in for card payments • Cash, checks and bank transfers • Sport vouchers (Pass Sport, CAF, BAZ, CNAS Pass+ and more) • Split payments (combine several methods in a single transaction) • Subscription products (monthly, yearly, packs, free trials) • Pro-rated or full-month billing • Outstanding-balance tracking and full payment history PROFESSORS Tools built for teaching: • Create and manage classes • Rate students on each lesson material • Personal stats (teaching hours, classes given) • Attention dashboard to spot struggling students early • Post updates and polls to the academy feed FOR PRACTITIONERS Track your journey: • Clear agenda of all your sessions • Join a class in one tap • QR scan for attendance • Public and private competitions (filter by federation, weight, age, belt) • Academy leaderboard • Full graduation and belt history • Attendance and progression stats COMPETITIONS Live the competition: • Discover public and academy-private events • Register with category selection • Real-time status (interested, registered, on site) • Brackets, results and podiums • Personal competition history GRADUATIONS Structure your members' progress: • Custom graduation paths • Configurable promotion criteria • Complete history per practitioner • Multi-sport (BJJ, Judo, MMA, Grappling) BUILT-IN STORE Sell your gear: • Merch catalog (gi, t-shirts, equipment) • Order tracking • CSV export for fulfillment COMMUNITY Bring your academy to life: • Feed of posts, photos and polls • Likes, comments and pinned announcements • Public member profiles • Push notifications PERSONALIZATION • Light, dark or automatic mode • Multi-academy from a single account • Built for mobile, tablet and web • Multilingual SECURITY • Two-factor authentication (2FA) • Secure data storage • GDPR compliant • Your personal data is never shared SUPPORT Our team is reachable directly from the app for any question or suggestion. OSS Academy is where martial arts tradition meets modern software. Whether you own an academy, teach a class or step on the mats, OSS Academy makes your day easier and your community stronger. Download OSS Academy and take your academy to the next level. OSS!
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Verdict
The clearest difference is in-app purchases: OSS Academy at none against OneJitsu's 7. OneJitsu's advantage is update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement 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. OneJitsu sells 7 in-app purchases, starting at $44.99 per month. OSS Academy asks for nothing beyond the download.
OneJitsu ships an update every 4 days, OSS Academy fortnightly. The most recent releases landed on September 10, 2026 and September 25, 2026 respectively.
| Parameter | OneJitsu | OSS Academy |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 69 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | PHIL@KOD | Jeremy Roustang |
Customer experience
OneJitsu
OSS Academy
In-app purchases
OneJitsu
- Monthly premium account$44.991 Month
- Annual premium membership$390.001 Year
- Notify at 100km$0.99
- Notify at 250km$1.99
- Notify at 500km$2.99
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- Notify at 750km$3.99
- Notify at 1000km$4.99
OSS Academy
No in-app purchases








