# Ballet Index vs Cortex 5.0

The clearest difference is price: Cortex 5.0 at Free against Ballet Index's $0.99. Cortex 5.0 also leads on rating (5.0 vs 2.3) and iOS requirement (10.0 vs 16.6). Ballet Index's advantage is update cadence (every 3 months vs every 20 months) and chart position (#184 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Cortex 5.0 is free to download; Ballet Index costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cortex 5.0 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, Cortex 5.0 every 20 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ballet Index | Cortex 5.0 |
| --- | --- | --- |
| 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/cortex-50/id940894725/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 48.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 20 months |
| Monetization | Free | Free |
| Best chart rank | **#184** | — |
| Size | 4 MB | 83 MB |
| Requires iOS | 16.6 | **10.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cannonade.Net](https://appshunter.io/developer/326682509) | [PCS Edventures!](https://appshunter.io/developer/920195647) |

## What reviewers say

### Ballet Index

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

**Currently charting:** #184 Top Paid · Education (US App Store)

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


### Cortex 5.0

[App page](https://appshunter.io/ios/app/cortex-50/id940894725)

This app provides a drag-and-drop interface for programming robotics kits, generating Arduino code. It allows users to build and program robots that interact with their environment using sensors and various building systems. The user-friendly, game-like environment is ideal for learning programming and Arduino coding.

**Highlights:** Drag-and-drop programming interface, Generates Arduino code, Supports multiple building systems (fischertechnik, LEGO, K'NEX, VEX), Robot interaction with sensors, Game-like learning environment, iPad compatible

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ballet Index free?

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

### Is Cortex 5.0 free?

Cortex 5.0 is free to download, with no in-app purchases.

### Which has better reviews, Ballet Index or Cortex 5.0?

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

### Do Ballet Index or Cortex 5.0 have ads?

Neither Ballet Index nor Cortex 5.0 shows ads.

### Which is updated more often, Ballet Index or Cortex 5.0?

Ballet Index ships an update every 3 months, and Cortex 5.0 every 20 months. Most recently, Ballet Index was updated on October 14, 2026 and Cortex 5.0 on October 7, 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.*