# IBJJF Rules vs Judokai lite

The clearest difference is update cadence: Judokai lite at every 2 weeks against IBJJF Rules's every 5 months. Judokai lite also leads on review sentiment (100% vs 89%). IBJJF Rules's advantage is ratings volume (698 vs 70) and iOS requirement (13.0 vs 15.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for IBJJF Rules against 4.8 for Judokai lite. That said, the two scores are not equally well evidenced: IBJJF Rules has 698 ratings behind it against 70, so its average is the more settled of the two. Written reviews are what separate them: 89% of IBJJF Rules's written reviews are positive against 100% of Judokai lite's.

IBJJF Rules ships an update every 5 months, Judokai lite every 2 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | IBJJF Rules | Judokai lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (698 ratings)](https://appshunter.io/ios/app/ibjjf-rules/id667446064/reviews)** | [4.8 (70 ratings)](https://appshunter.io/ios/app/judokai-lite/id1623786598/reviews) |
| Number of ratings | **698** | 70 |
| Positive reviews | 89.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 4 MB | 167 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [smudge.io PTY LTD](https://appshunter.io/developer/426335181) | [Eduardo Costa Producoes Audiovisuais LDA](https://appshunter.io/developer/1492684412) |

## 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


### Judokai lite

[App page](https://appshunter.io/ios/app/judokai-lite/id1623786598)

Master Judo techniques with an offline video library and interactive quizzes. Learn from world-class masters and track your progress. Transform your device into a virtual dojo for comprehensive Judo education.

**Highlights:** Offline video library, Professional quality demonstrations, Complete technique glossary, Interactive quiz game, Progress tracking, Learn from Judo masters

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

**In-app purchases:** none


## Frequently asked questions

### Is IBJJF Rules free?

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

### Is Judokai lite free?

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

### Which has better reviews, IBJJF Rules or Judokai lite?

IBJJF Rules is rated higher. IBJJF Rules averages 4.8 out of 5 from 698 ratings, while Judokai lite averages 4.8 from 70 ratings.

### Do IBJJF Rules or Judokai lite have ads?

Neither IBJJF Rules nor Judokai lite shows ads.

### Which is updated more often, IBJJF Rules or Judokai lite?

IBJJF Rules ships an update every 5 months, and Judokai lite every 2 weeks. Most recently, IBJJF Rules was updated on November 6, 2026 and Judokai lite on November 7, 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.*