FlutterCodeX vs Quick Whistle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlutterCodeX
Explore and learn about Flutter widgets with live examples and source code. Manage your learning materials with a built-in Markdown editor.
- Flutter widget examples
- View source code
- Markdown document management
- Learning material storage
- Quick lookup of usage
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An app for showcasing various Flutter widgets and their effects, with the ability to view the corresponding source code for each widget. It helps quickly look up usage examples, and also comes with a built-in Markdown document management tool, making it convenient to store and access learning materials in Markdown format.
Quick Whistle
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Always have a whistle in your pocket. Use the app directly, or add it as a widget to your Lock Screen or control center for quick access.
Screenshots
Verdict
The clearest difference is in-app purchases: Quick Whistle at none against FlutterCodeX's 1. FlutterCodeX's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads 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. FlutterCodeX sells 1 one-off in-app purchase. Quick Whistle asks for nothing beyond the download.
FlutterCodeX ships an update every 2 months, Quick Whistle every 4 months. Both last shipped on September 21, 2026.
| Parameter | FlutterCodeX | Quick Whistle |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 38 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | Chengdu Feng Chui Ye Technology Co., Ltd | Finite Fractal Studios |
In-app purchases
FlutterCodeX
- Professional Edition$1.99
Quick Whistle
No in-app purchases
