# IBJJF Rules vs Tobu

The clearest difference is in-app purchases: IBJJF Rules at none against Tobu's 4. IBJJF Rules also leads on ads (none vs shown) and ratings volume (698 vs 3). Tobu's advantage is update cadence (every 3 weeks vs every 5 months) and review sentiment (100% vs 89%). On price and rating there is nothing between them.

Both are free to download. Tobu sells 4 in-app purchases, starting at $4.99 per month. IBJJF Rules asks for nothing beyond the download.

Tobu holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: IBJJF Rules has 698 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 89% of IBJJF Rules's written reviews are positive against 100% of Tobu's.

IBJJF Rules ships an update every 5 months, Tobu every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | IBJJF Rules | Tobu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (698 ratings)](https://appshunter.io/ios/app/ibjjf-rules/id667446064/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tobu-skydiving-logbook/id6443548654/reviews)** |
| Number of ratings | **698** | 3 |
| Positive reviews | 89.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 41 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [smudge.io PTY LTD](https://appshunter.io/developer/426335181) | [Nso Limited](https://appshunter.io/developer/1647052245) |

## 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


### Tobu

[App page](https://appshunter.io/ios/app/tobu-skydiving-logbook/id6443548654)

This app helps skydivers track their jumps with automatic data calculation and flight trajectory recording. It offers a career summary and allows for adding gear, DZs, and digital signatures. Export your data to CSV for analysis and progress tracking.

**Highlights:** USPA logging compliance, Automatic jump data calculation, Flight trajectory recording, Gear and DZ logging, Digital signatures, Career summary, CSV data export

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Early Bird - Premium Monthly | $4.99 | per month |
| Premium Monthly | $8.99 | per month |
| Early Bird - Premium Annual | $42.99 | per year |
| Premium Monthly | $89.99 | per year |


## Frequently asked questions

### Is IBJJF Rules free?

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

### Is Tobu free?

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

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

Tobu is rated higher. IBJJF Rules averages 4.8 out of 5 from 698 ratings, while Tobu averages 5.0 from 3 ratings.

### Do IBJJF Rules or Tobu have ads?

Tobu shows ads; IBJJF Rules does not.

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

IBJJF Rules ships an update every 5 months, and Tobu every 3 weeks. Most recently, IBJJF Rules was updated on November 1, 2026 and Tobu on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*