# IBJJF Rules vs 1Fitness

The clearest difference is in-app purchases: IBJJF Rules at none against 1Fitness's 3. IBJJF Rules also leads on iOS requirement (13.0 vs 15.1). 1Fitness's advantage is update cadence (fortnightly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. 1Fitness sells 3 in-app purchases, starting at $9.99 per 7 days. IBJJF Rules asks for nothing beyond the download.

IBJJF Rules ships an update every 5 months, 1Fitness fortnightly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | IBJJF Rules | 1Fitness |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (698 ratings)](https://appshunter.io/ios/app/ibjjf-rules/id667446064/reviews)** | — |
| Number of ratings | **698** | — |
| Positive reviews | 89.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 4 MB | 27 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [smudge.io PTY LTD](https://appshunter.io/developer/426335181) | [Abdolhosein Hashemizadeh](https://appshunter.io/developer/1692741490) |

## What reviewers say

### IBJJF Rules

[App page](https://appshunter.io/ios/app/ibjjf-rules/id667446064)

Access a comprehensive guide to International Brazilian Jiu Jitsu Federation competition rules. Quickly find details on scoring, fouls, age and weight limits, and fight durations for referees, coaches, and athletes.

**Highlights:** IBJJF rules reference, Severe technical fouls, Points and scoring, Age limits, Weight classes, Fight durations

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🚀 Quick reference guide for rules
- 📚 Comprehensive IBJJF ruleset information
- ⚡ Easy navigation and accessibility
- 🎯 Helpful for competitors, coaches, and referees

**What reviewers complain about**

- 📖 Insufficient detailed information
- 🔄 Outdated rule updates
- 🌐 Limited language options

**Reported bugs**

- App functionality issues (non-functional features)

**Requested features**

- Weight classes and divisions tab
- Portuguese language support
- Updated IBJJF 2020+ rules
- AJP (Asian Jiu-Jitsu Pro) rules inclusion


### 1Fitness

[App page](https://appshunter.io/ios/app/1fitness/id6478520492)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $9.99 | per 7 days |
| Premium | $19.99 | per 7 days |
| VIP | $49.99 | per 7 days |


## Frequently asked questions

### Is IBJJF Rules free?

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

### Is 1Fitness free?

1Fitness is free to download, with in-app purchases available.

### Do IBJJF Rules or 1Fitness have ads?

Neither IBJJF Rules nor 1Fitness shows ads.

### Which is updated more often, IBJJF Rules or 1Fitness?

IBJJF Rules ships an update every 5 months, and 1Fitness fortnightly. Most recently, IBJJF Rules was updated on November 6, 2026 and 1Fitness on November 8, 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.*