# IBJJF Rules vs FlowRoll

The clearest difference is in-app purchases: IBJJF Rules at none against FlowRoll's 4. IBJJF Rules also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). FlowRoll's advantage is update cadence (weekly vs every 5 months) and chart position (#180 vs unranked). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. FlowRoll sells 4 in-app purchases, starting at $9.99 per month. IBJJF Rules asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for IBJJF Rules against 4.9 for FlowRoll. Both are backed by a comparable volume of ratings — 693 and 520 respectively. Written reviews are what separate them: 89% of IBJJF Rules's written reviews are positive against 93% of FlowRoll's.

IBJJF Rules ships an update every 5 months, FlowRoll weekly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | IBJJF Rules | FlowRoll |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (693 ratings)](https://appshunter.io/ios/app/ibjjf-rules/id667446064/reviews) | **[4.9 (520 ratings)](https://appshunter.io/ios/app/flowroll-bjj-training-pal/id6748845376/reviews)** |
| Number of ratings | **693** | 520 |
| Positive reviews | 89.3% of reviews | **92.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#180** |
| Size | 4 MB | 102 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [smudge.io PTY LTD](https://appshunter.io/developer/426335181) | [DAVID ANTHONY KIELY](https://appshunter.io/developer/1829992386) |

## 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


### FlowRoll

[App page](https://appshunter.io/ios/app/flowroll-bjj-training-pal/id6748845376)

**Currently charting:** #180 Top Grossing · Sports (US App Store)

Track your Brazilian Jiu Jitsu progress with this app. Log training sessions, build a personal technique library, and analyze your performance with insightful charts. Connect with a global community of grapplers and refine your skills.

**Highlights:** Technique library with categorization, Detailed training session logging, Community features and leaderboards, Visual analytics and progress charts, Advanced search and filtering, Offline-first design, Gi and no-gi training support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Membership | $9.99 | per month |
| Annual Pro Membership Special | $34.99 | per year |
| Annual Pro Membership | $49.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is IBJJF Rules free?

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

### Is FlowRoll free?

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

### Which has better reviews, IBJJF Rules or FlowRoll?

FlowRoll is rated higher. IBJJF Rules averages 4.8 out of 5 from 693 ratings, while FlowRoll averages 4.9 from 520 ratings.

### Do IBJJF Rules or FlowRoll have ads?

Neither IBJJF Rules nor FlowRoll shows ads.

### Which is updated more often, IBJJF Rules or FlowRoll?

IBJJF Rules ships an update every 5 months, and FlowRoll weekly. Most recently, IBJJF Rules was updated on September 21, 2026 and FlowRoll on September 22, 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.*