# AOJ+ vs TrainOS

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.

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.

## The numbers

| Metric | AOJ+ | TrainOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (397 ratings)](https://appshunter.io/ios/app/aoj-plus/id1614908996/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trainos/id6759579581/reviews)** |
| Number of ratings | **397** | 1 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 63 MB | 90 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mendes Bros, Inc](https://appshunter.io/developer/1614908998) | [Sourish Agarwal](https://appshunter.io/developer/1582144014) |

## What reviewers say

### AOJ+

[App page](https://appshunter.io/ios/app/aoj-plus/id1614908996)

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.

**Highlights:** Thousands of technique instructionals, Hours of sparring and drilling footage, Exclusive interviews, Behind-the-scenes content, World-class instructors, Cinematic presentation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $24.99 | per month |
| 3 Month Subscription | $74.99 | per 3 months |
| 6 Month Subscription | $139.99 | per 6 months |
| 12 Month Subscription | $249.99 | per year |
| Content Tier $49.99 | $49.99 | one-time |
| Content Tier $59.99 | $59.99 | one-time |
| Content Tier $99.99 | $99.99 | one-time |
| Content Tier $149.99 | $149.99 | one-time |
| Content Tier $179.99 | $179.99 | one-time |
| Content Tier $199.99 | $199.99 | one-time |
| Content Tier $219.99 | $219.99 | one-time |
| Content Tier $229.99 | $229.99 | one-time |
| Content Tier $249.99 | $249.99 | one-time |
| Content Tier $349.99 | $349.99 | one-time |

**What reviewers like**

- 💎 High quality instruction and content
- ✨ Crystal clear, HD videos
- 📚 Thorough and regularly updated content
- 💡 Immersive learning experience
- 🏆 Instrumental in practitioner development and success

**What reviewers complain about**

- 🐛 Search function is useless
- 📉 Only showing a handful of videos
- ⏳ Potential server issues affecting content availability

**Reported bugs**

- Search function does not return relevant results
- App initially shows very few videos, potentially due to server issues

**Requested features**

- Increase variety in fundamentals/curriculum/technique sections
- Create training modules for progressive learning
- Add more non-technique videos, such as athlete stories


### TrainOS

[App page](https://appshunter.io/ios/app/trainos/id6759579581)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AOJ+ free?

AOJ+ is free to download, with in-app purchases available.

### Is TrainOS free?

TrainOS is free to download, with no in-app purchases.

### Which has better reviews, AOJ+ or TrainOS?

TrainOS is rated higher. AOJ+ averages 4.9 out of 5 from 397 ratings, while TrainOS averages 5.0 from 1 ratings.

### Do AOJ+ or TrainOS have ads?

Neither AOJ+ nor TrainOS shows ads.

### Which is updated more often, AOJ+ or TrainOS?

AOJ+ ships an update every 5 weeks, and TrainOS every 3 weeks. Most recently, AOJ+ was updated on October 17, 2026 and TrainOS on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*