# OneJitsu vs I

The clearest difference is update cadence: OneJitsu at every 4 days against I's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OneJitsu sells 7 in-app purchases, starting at $44.99 per month and I sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

OneJitsu ships an update every 4 days, I every 3 months. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | OneJitsu | I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/onejitsu/id1422478946/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 58 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PHIL@KOD](https://appshunter.io/developer/1385535897) | [I-PERCUT](https://appshunter.io/developer/1618012954) |

## 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 |


### I

[App page](https://appshunter.io/ios/app/i-percut/id1618013979)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I-Percut Premium 1 mois | $5.99 | per month |
| I-Percut Premium 3 mois | $14.99 | per 3 months |
| I-Percut Premium 1 an | $49.99 | per year |


## Frequently asked questions

### Is OneJitsu free?

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

### Is I free?

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

### Do OneJitsu or I have ads?

Neither OneJitsu nor I shows ads.

### Which is updated more often, OneJitsu or I?

OneJitsu ships an update every 4 days, and I every 3 months. Most recently, OneJitsu was updated on September 10, 2026 and I on September 18, 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.*