AOJ+ vs TrainOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AOJ+
Access a vast library of martial arts instructionals, sparring footage, and exclusive interviews. Learn from world-class instructors in an immersive, cinematic experience. Stream anytime, anywhere on your device.
- Thousands of technique instructionals
- Hours of sparring and drilling footage
- Exclusive interviews
- Behind-the-scenes content
- World-class instructors
- Cinematic presentation
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The Art of Jiu Jitsu Online Video Platform gives subscribers access to a database of thousands of technique instructionals, hours of sparring & drilling footage, exclusive interviews, behind the scenes content and more. The videos feature world class instructors and athletes and are presented in a cinematic and artistic manner, creating an immersive learning environment for the viewer. Multiple membership options are available and allow the user to stream anytime, anywhere on their device. ▷ Already a Member? Sign-In to access your subscription. ▷ New? Try it for free! Subscribe in the app to get instant access. The Art of Jiu Jitsu offers an auto-renewing subscription that will allow you unlimited access to content on all your devices. Payment is charged to your Account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current billing period. Cancel anytime in Account Settings. For more information see our: -Terms of Service: https://artofjiujitsu.com/terms-of-use/ -Privacy Policy: https://artofjiujitsu.com/privacy-policy/
TrainOS
This platform connects Brazilian Jiu-Jitsu academies with their students. It offers class booking, attendance tracking, progress monitoring, and community features for members, alongside powerful tools for instructors and owners to manage curriculum, promotions, and analytics.
- Instant class booking and availability
- Personalized check-in options
- Training progress tracking with heatmaps
- Belt promotion journey visualization
- Community feed for members
- AI assistant for academy owners
- Real-time class roster management
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TrainOS is the all-in-one platform for Brazilian Jiu-Jitsu academies. Two experiences, one platform — a powerful admin dashboard for owners and a beautiful mobile app for members. FOR STUDENTS - Book classes instantly and see availability at a glance - Check in with a personal code or touchless kiosk - Track your training with heatmaps, streaks, and attendance stats - Follow your belt promotion journey from white to black - Connect with training partners in the community feed - Manage your subscription and switch plans without contacting the front desk - Shop academy gear in the built-in store FOR INSTRUCTORS - Plan curriculum and visualize knowledge distribution across positions - Propose belt promotions with detailed notes and readiness tracking - View student analytics — training heatmaps, streaks, and competition records - Manage class rosters and check-ins in real-time FOR ACADEMY OWNERS - AI assistant for instant answers on attendance trends, revenue, and scheduling - Full member management with belt ranks, subscriptions, and engagement tracking - Push announcements to every member's phone in seconds - Sell gis, apparel, and gear through the built-in store - Connect Stripe or Square for automatic billing and flexible membership plans TrainOS brings your entire academy online — from check-ins and scheduling to community and commerce. Set up in minutes, not months.
Screenshots
Verdict
The clearest difference is in-app purchases: TrainOS at none against AOJ+'s 14. TrainOS also leads on review sentiment (100% vs 88%). AOJ+'s advantage is ratings volume (397 vs 1). On price, rating, 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. AOJ+ sells 14 in-app purchases, starting at $24.99 per month. TrainOS asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for AOJ+ against 5.0 for TrainOS. That said, the two scores are not equally well evidenced: AOJ+ has 397 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 88% of AOJ+'s written reviews are positive against 100% of TrainOS's.
AOJ+ ships an update every 5 weeks, TrainOS every 3 weeks. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.
| Parameter | AOJ+ | TrainOS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (397 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 87.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 397 — better | 1 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 63 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | Mendes Bros, Inc | Sourish Agarwal |
Customer experience
AOJ+
TrainOS
Bugs and requests
AOJ+
Reported bugs
2 issues- Search function does not return relevant results
- App initially shows very few videos, potentially due to server issues
Requested features
3 requests- Increase variety in fundamentals/curriculum/technique sections
- Create training modules for progressive learning
- Add more non-technique videos, such as athlete stories
TrainOS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AOJ+
- Monthly Subscription3 Days trial$24.991 Month
- 3 Month Subscription$74.993 Months
- 6 Month Subscription$139.996 Months
Show 1 moreShow fewer
- 12 Month Subscription3 Days trial$249.991 Year
- Content Tier $49.99$49.99
- Content Tier $59.99$59.99
- Content Tier $99.99$99.99
Show 7 moreShow fewer
- Content Tier $149.99$149.99
- Content Tier $179.99$179.99
- Content Tier $199.99$199.99
- Content Tier $219.99$219.99
- Content Tier $229.99$229.99
- Content Tier $249.99$249.99
- Content Tier $349.99$349.99
TrainOS
No in-app purchases









