# ShotokanPro vs RacingRulesOfSailing.org

The clearest difference is price: RacingRulesOfSailing.org at Free against ShotokanPro's $19.99. RacingRulesOfSailing.org also leads on in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 5 months). ShotokanPro's advantage is rating (5.0 vs 2.4) and review sentiment (50% vs 25%). On ads, device support and iOS requirement there is nothing between them.

RacingRulesOfSailing.org is free to download; ShotokanPro costs $19.99 up front. ShotokanPro sells 1 one-off in-app purchase. RacingRulesOfSailing.org asks for nothing beyond the download.

ShotokanPro holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: RacingRulesOfSailing.org has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of ShotokanPro's written reviews are positive against 25% of RacingRulesOfSailing.org's.

ShotokanPro ships an update every 5 months, RacingRulesOfSailing.org every 5 weeks. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | ShotokanPro | RacingRulesOfSailing.org |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shotokanpro/id529746700/reviews)** | [2.4 (5 ratings)](https://appshunter.io/ios/app/racingrulesofsailingorg/id1443702609/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | **50.0% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 121 MB | 41 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spectra-Verlag](https://appshunter.io/developer/529746703) | [Paul Zupan](https://appshunter.io/developer/1443702608) |

## What reviewers say

### ShotokanPro

[App page](https://appshunter.io/ios/app/shotokanpro/id529746700)

Master Shotokan Karate katas with detailed illustrations and animations. Track your progress, adjust playback speed, and zoom in on crucial movements. Includes all 27 Shotokan katas for comprehensive study.

**Highlights:** All 27 Shotokan-Katas included, Detailed illustrations and animations, Adjustable animation speeds, Zoomable graphics, Progress tracking to-do list, Portrait and landscape modes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enbusen | $5.99 | one-time |


### RacingRulesOfSailing.org

[App page](https://appshunter.io/ios/app/racingrulesofsailingorg/id1443702609)

Manage sailing race documents, scoring, and official tasks. Competitors can electronically file inquiries and protests, which are automatically routed to the correct officials for efficient event management.

**Highlights:** Document management, Scoring, Jury tasks, Electronic inquiries, Protest filing, Hearing schedule

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

**In-app purchases:** none


## Frequently asked questions

### Is ShotokanPro free?

ShotokanPro costs $19.99, and also offers in-app purchases.

### Is RacingRulesOfSailing.org free?

RacingRulesOfSailing.org is free to download, with no in-app purchases.

### Which has better reviews, ShotokanPro or RacingRulesOfSailing.org?

ShotokanPro is rated higher. ShotokanPro averages 5.0 out of 5 from 1 ratings, while RacingRulesOfSailing.org averages 2.4 from 5 ratings.

### Do ShotokanPro or RacingRulesOfSailing.org have ads?

Neither ShotokanPro nor RacingRulesOfSailing.org shows ads.

### Which is updated more often, ShotokanPro or RacingRulesOfSailing.org?

ShotokanPro ships an update every 5 months, and RacingRulesOfSailing.org every 5 weeks. Most recently, ShotokanPro was updated on September 19, 2026 and RacingRulesOfSailing.org on September 12, 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.*