# Ballet Index vs Relative Motion Technique

The clearest difference is price: Relative Motion Technique at Free against Ballet Index's $0.99. Relative Motion Technique also leads on rating (5.0 vs 2.3) and update cadence (every 2 weeks vs every 3 months). Ballet Index's advantage is in-app purchases (none vs 7) and ratings volume (6 vs 1). On ads, device support and iOS requirement there is nothing between them.

Relative Motion Technique is free to download; Ballet Index costs $0.99 up front. Relative Motion Technique sells 7 one-off in-app purchases. Ballet Index asks for nothing beyond the download.

Relative Motion Technique holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: Ballet Index has 6 ratings behind it against 1, so its average is the more settled of the two.

Ballet Index ships an update every 3 months, Relative Motion Technique every 2 weeks. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Ballet Index | Relative Motion Technique |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.3 (6 ratings)](https://appshunter.io/ios/app/ballet-index/id326682506/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/relative-motion-technique/id6503627920/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 48.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 49 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cannonade.Net](https://appshunter.io/developer/326682509) | [Relative Motion](https://appshunter.io/developer/1752736465) |

## What reviewers say

### Ballet Index

[App page](https://appshunter.io/ios/app/ballet-index/id326682506)

This app provides a comprehensive and cross-referenced glossary of ballet terms. It stores all data locally on your device, requiring no network connection. The glossary is continuously growing with new definitions.

**Highlights:** Cross-referenced ballet glossary, Offline data storage, 270+ ballet definitions, Image support (in latest version), Continuously growing content

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

**In-app purchases:** none


### Relative Motion Technique

[App page](https://appshunter.io/ios/app/relative-motion-technique/id6503627920)

Access all your dance training videos in one convenient app. Receive timely updates and news, and enjoy easy access to your content without needing to remember passwords.

**Highlights:** Centralized video library, Push notifications for updates, Password-free video access, Dance training resources

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tap Triplets | $2.99 | one-time |
| 4-Day Tap Challenge | $9.99 | one-time |
| Safe Landings | $14.99 | one-time |
| Mastering Weight Transfer | $17.99 | one-time |
| Mastering A La Seconde | $27.99 | one-time |
| The Injury-Free+ Athlete | $44.99 | one-time |
| Injury-Free Impact | $47.99 | one-time |


## Frequently asked questions

### Is Ballet Index free?

Ballet Index costs $0.99, with no in-app purchases.

### Is Relative Motion Technique free?

Relative Motion Technique is free to download, with in-app purchases available.

### Which has better reviews, Ballet Index or Relative Motion Technique?

Relative Motion Technique is rated higher. Ballet Index averages 2.3 out of 5 from 6 ratings, while Relative Motion Technique averages 5.0 from 1 ratings.

### Do Ballet Index or Relative Motion Technique have ads?

Neither Ballet Index nor Relative Motion Technique shows ads.

### Which is updated more often, Ballet Index or Relative Motion Technique?

Ballet Index ships an update every 3 months, and Relative Motion Technique every 2 weeks. Most recently, Ballet Index was updated on October 31, 2026 and Relative Motion Technique on October 27, 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.*