Strap vs OSS Academy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strap
Learn Brazilian Jiu-Jitsu faster with over 300 Gi and NoGi videos. Explore guards, passes, positions, and submissions, covering both attacks and defenses. Build confidence, stay motivated, and accelerate your progress on the mats.
- 300+ Gi and NoGi videos
- Categorized by Guards, Passes, Positions, Submissions
- Attacks and Defenses covered
- Progress faster
- Stay motivated
- Build confidence
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Progresses 2 fois plus vite avec Strap, l'application pour apprendre le Jiu-Jitsu Brésilien ! Tu accéderas à plus de 300 vidéos en Gi et en NoGi, triées par catégories: Gardes, Passages, Positions, Finalisations. Pour chaque catégorie, tu retrouveras les attaques et les défenses. Grâce à Strap tu vas: - Gagner en confiance pendant tes combats. - Ne jamais perdre ta motivation. - Progresser 2 fois plus vite. Conditions générales d'utilisation: https://www.strap-bjj.com/tos
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!
Screenshots
Verdict
The clearest difference is in-app purchases: OSS Academy at none against Strap's 3. OSS Academy also leads on device support (3 vs 1). On price, review sentiment, update cadence and ads 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. Strap sells 3 in-app purchases, starting at $12.99 per month. OSS Academy asks for nothing beyond the download.
Strap ships an update every 3 weeks, OSS Academy fortnightly. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.
| Parameter | Strap | OSS Academy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 95.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 96 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Florian COLBE | Jeremy Roustang |
Customer experience
Strap
OSS Academy
Bugs and requests
Strap
Reported bugs
3 issues- Mac app not functioning correctly
- Premium account inaccessible on Mac
- Display bugs related to technique levels
Requested features
4 requests- iPad format availability
- More content on specific no-gi techniques
- More free techniques to encourage subscription
- Ability to go to the next video in full-screen mode
OSS Academy
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Strap
- Abonnement mensuel3 Days trial$12.991 Month
- Abonnement 6 Mois7 Days trial$59.996 Months
- Abonnement annuel14 Days trial$99.991 Year
OSS Academy
No in-app purchases









