# PowerMJ vs FlutterCodeX

The clearest difference is in-app purchases: PowerMJ at none against FlutterCodeX's 1. PowerMJ also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (12.0 vs 15.0). FlutterCodeX's advantage is device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. FlutterCodeX sells 1 one-off in-app purchase. PowerMJ asks for nothing beyond the download.

PowerMJ ships an update every 4 days, FlutterCodeX every 2 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | PowerMJ | FlutterCodeX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 87 MB | 38 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [Shanghai Power Science&Technology Co., Ltd.](https://appshunter.io/developer/1463907329) | [Chengdu Feng Chui Ye Technology Co., Ltd](https://appshunter.io/developer/1608679124) |

## What reviewers say

### PowerMJ

[App page](https://appshunter.io/ios/app/powermj/id6738763443)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### FlutterCodeX

[App page](https://appshunter.io/ios/app/fluttercodex/id6749268845)

Explore and learn about Flutter widgets with live examples and source code. Manage your learning materials with a built-in Markdown editor.

**Highlights:** Flutter widget examples, View source code, Markdown document management, Learning material storage, Quick lookup of usage

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Edition | $1.99 | one-time |


## Frequently asked questions

### Is PowerMJ free?

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

### Is FlutterCodeX free?

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

### Do PowerMJ or FlutterCodeX have ads?

Neither PowerMJ nor FlutterCodeX shows ads.

### Which is updated more often, PowerMJ or FlutterCodeX?

PowerMJ ships an update every 4 days, and FlutterCodeX every 2 months. Most recently, PowerMJ was updated on October 7, 2026 and FlutterCodeX 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.*