# Adaptivity (C) vs Rubyist

The clearest difference is in-app purchases: Adaptivity (C) at none against Rubyist's 3. Adaptivity (C) also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 83%). Rubyist's advantage is ratings volume (93 vs 4) and update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Rubyist sells 3 one-off in-app purchases. Adaptivity (C) asks for nothing beyond the download.

Adaptivity (C) holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Rubyist has 93 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Adaptivity (C)'s written reviews are positive against 83% of Rubyist's.

Adaptivity (C) ships an update every 2 months, Rubyist every 3 weeks. The most recent releases landed on September 22, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Adaptivity (C) | Rubyist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/adaptivity-c/id1450636756/reviews)** | [4.6 (93 ratings)](https://appshunter.io/ios/app/rubyist-ruby-scripting/id1539089868/reviews) |
| Number of ratings | 4 | **93** |
| Positive reviews | **100.0% of reviews** | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 26 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Geoff Hackworth](https://appshunter.io/developer/463855590) | [TSUBASA TECHNOLOGIES LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1539089870) |

## What reviewers say

### Adaptivity (C)

[App page](https://appshunter.io/ios/app/adaptivity-c/id1450636756)

Visualize layout elements like Size Classes, margins, and safe areas on devices. See how these adapt to orientation and Dynamic Type changes. This free version offers core features for developers and designers.

**Highlights:** Visualize Size Classes and margins, Adapt to orientation and Dynamic Type, View layout on real devices, Toggle status bar and navigation bar, Share snapshot images, Dark appearance support

**Features:** Vision Pro support

**In-app purchases:** none


### Rubyist

[App page](https://appshunter.io/ios/app/rubyist-ruby-scripting/id1539089868)

Execute and automate Ruby scripts directly on your iPhone and iPad. This app utilizes the MRuby VM to run code, integrate with Shortcuts and Siri, and offers a robust editor with syntax highlighting and autocomplete.

**Highlights:** Run Ruby code on device, Editor with syntax highlighting, Code autocomplete, Shortcuts app integration, Siri command creation, Native alerts and inputs, HTTP requests, Clipboard access

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Adaptivity (C) free?

Adaptivity (C) is free to download, with no in-app purchases.

### Is Rubyist free?

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

### Which has better reviews, Adaptivity (C) or Rubyist?

Adaptivity (C) is rated higher. Adaptivity (C) averages 5.0 out of 5 from 4 ratings, while Rubyist averages 4.6 from 93 ratings.

### Do Adaptivity (C) or Rubyist have ads?

Neither Adaptivity (C) nor Rubyist shows ads.

### Which is updated more often, Adaptivity (C) or Rubyist?

Adaptivity (C) ships an update every 2 months, and Rubyist every 3 weeks. Most recently, Adaptivity (C) was updated on September 22, 2026 and Rubyist 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.*