# ShotokanKata vs IBJJF Rules

The clearest difference is in-app purchases: IBJJF Rules at none against ShotokanKata's 21. IBJJF Rules also leads on ratings volume (693 vs 46). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. ShotokanKata sells 21 one-off in-app purchases. IBJJF Rules asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for ShotokanKata against 4.8 for IBJJF Rules. That said, the two scores are not equally well evidenced: IBJJF Rules has 693 ratings behind it against 46, so its average is the more settled of the two. Written reviews are what separate them: 86% of ShotokanKata's written reviews are positive against 89% of IBJJF Rules's.

ShotokanKata ships an update every 3 months, IBJJF Rules every 5 months. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ShotokanKata | IBJJF Rules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (46 ratings)](https://appshunter.io/ios/app/shotokankata/id540281531/reviews) | [4.8 (693 ratings)](https://appshunter.io/ios/app/ibjjf-rules/id667446064/reviews) |
| Number of ratings | 46 | **693** |
| Positive reviews | 86.0% of reviews | **89.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 121 MB | 4 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spectra-Verlag](https://appshunter.io/developer/529746703) | [smudge.io PTY LTD](https://appshunter.io/developer/426335181) |

## What reviewers say

### ShotokanKata

[App page](https://appshunter.io/ios/app/shotokankata/id540281531)

Master martial arts sequences with detailed illustrations and adjustable animation speeds. Track your progress, zoom into details, and practice in various modes to perfect your kata forms. Supports multiple languages.

**Highlights:** Detailed kata illustrations, Adjustable animation speeds, Zoomable graphics, Progress tracking to-do list, Portrait and landscape modes, Multiple background options

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

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hangetsu | $0.99 | one-time |
| Goju shi ho dai | $1.99 | one-time |
| Gankaku | $1.99 | one-time |
| Tekki sandan | $1.99 | one-time |
| Kanku sho | $1.99 | one-time |
| Sochin | $1.99 | one-time |
| Goju shi ho sho | $1.99 | one-time |
| Ji'in | $1.99 | one-time |
| Meikyo | $1.99 | one-time |
| Jion | $1.99 | one-time |
| Heian godan | $1.99 | one-time |
| Heian sandan | $1.99 | one-time |
| Heian yondan | $1.99 | one-time |
| Tekki shodan | $1.99 | one-time |
| Tekki nidan | $1.99 | one-time |
| Bassai dai | $1.99 | one-time |
| Bassai sho | $1.99 | one-time |
| Kanku dai | $1.99 | one-time |
| Empi | $1.99 | one-time |
| Enbusen | $5.99 | one-time |
| All kata unlocked | $19.99 | one-time |


### 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


## Frequently asked questions

### Is ShotokanKata free?

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

### Is IBJJF Rules free?

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

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

ShotokanKata and IBJJF Rules are both rated 4.8 out of 5 on the App Store, from 46 and 693 ratings respectively.

### Do ShotokanKata or IBJJF Rules have ads?

Neither ShotokanKata nor IBJJF Rules shows ads.

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

ShotokanKata ships an update every 3 months, and IBJJF Rules every 5 months. Most recently, ShotokanKata was updated on September 23, 2026 and IBJJF Rules on September 21, 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.*