Rubyist vs PPGTestData
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rubyist
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.
- 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
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Rubyist allows you to run Ruby code on your iPhone and iPad using the MRuby VM. Run code directly in the app or via the Shortcuts app or Siri commands. Features: - Run Ruby code directly on your device - Built-in documentation viewer - Editor with ruby syntax highlighting - Code Autocomplete - Run Ruby directly in Shortcuts - Build your own Siri commands in Ruby. - Display native alerts and inputs using exclusive APIs - Make http requests from your code. - Write and read your clipboard from code
PPGTestData
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App 僅供測試特定手錶採集原始數據功能，不具備醫療功用 The App is for testing the data collection functionality of specific watches and is not intended for medical purposes.
Screenshots
Verdict
The clearest difference is in-app purchases: PPGTestData at none against Rubyist's 3. PPGTestData also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads 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
Both are free to download. Rubyist sells 3 one-off in-app purchases. PPGTestData asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.
| Parameter | Rubyist | PPGTestData |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (93 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 93 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 1 MB |
| Age rating | 4+ | 12+ |
| Developer | TSUBASA TECHNOLOGIES LIMITED LIABILITY COMPANY | HSIN MING HUANG |
In-app purchases
Rubyist
- Small Tip$0.99
- Medium Tip$4.99
- Large Tip$9.99
PPGTestData
No in-app purchases
