# OneJitsu vs OSS Academy

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.

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.

## The numbers

| Metric | OneJitsu | OSS Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/onejitsu/id1422478946/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 69 MB | 70 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PHIL@KOD](https://appshunter.io/developer/1385535897) | [Jeremy Roustang](https://appshunter.io/developer/595131737) |

## What reviewers say

### OneJitsu

[App page](https://appshunter.io/ios/app/onejitsu/id1422478946)

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.

**Highlights:** 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

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly premium account | $44.99 | per month |
| Annual premium membership | $390.00 | per year |
| Notify at 100km | $0.99 | one-time |
| Notify at 250km | $1.99 | one-time |
| Notify at 500km | $2.99 | one-time |
| Notify at 750km | $3.99 | one-time |
| Notify at 1000km | $4.99 | one-time |


### OSS Academy

[App page](https://appshunter.io/ios/app/oss-academy/id6755065484)

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.

**Highlights:** Smart class scheduling, Attendance tracking (QR code), Member management with roles, Integrated payment processing, Student progression tracking, Competition management, Built-in store for merchandise

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

**In-app purchases:** none


## Frequently asked questions

### Is OneJitsu free?

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

### Is OSS Academy free?

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

### Do OneJitsu or OSS Academy have ads?

Neither OneJitsu nor OSS Academy shows ads.

### Which is updated more often, OneJitsu or OSS Academy?

OneJitsu ships an update every 4 days, and OSS Academy fortnightly. Most recently, OneJitsu was updated on September 10, 2026 and OSS Academy on September 25, 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.*