Ballet Index vs Cortex 5.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ballet Index
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.
- Cross-referenced ballet glossary
- Offline data storage
- 270+ ballet definitions
- Image support (in latest version)
- Continuously growing content
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A fast, cross referenced glossary of Ballet Terms. Data is stored on your iPhone, no network connectivity required. 292 Ballet definitions and growing. If you are looking for images, try updating to the latest version (not on every definition, but we are getting there).
Cortex 5.0
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.
- 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
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The PCS Edventures Cortex is a drag-and-drop robotics programming environment that generates Arduino code for PCS Brain robotics kits or robot kits of your own design. Using the PCS Brain you can build robots that interact with their environment using sensors and move around using a variety of building systems including fischertechnik(r), LEGO(r), K'NEX, VEX, and others. You can even bolt it on to your R/C car and teach it to follow you like a dog! The rich, game-like programming interface is a great tool for learning how to program in a friendly environment, provides tools for learning Arduino coding, and it works on iPad!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Ballet Index | Cortex 5.0 |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 2.3 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 48.4% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 3 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #184 — better | — |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Cannonade.Net | PCS Edventures! |
Customer experience
Ballet Index
Cortex 5.0
In-app purchases
Ballet Index
No in-app purchases
Cortex 5.0
No in-app purchases
Questions
Is Ballet Index free?
Is Cortex 5.0 free?
Which has better reviews, Ballet Index or Cortex 5.0?
Do Ballet Index or Cortex 5.0 have ads?
Which is updated more often, Ballet Index or Cortex 5.0?
Other comparisons
