# M vs Casto Flasher

The clearest difference is update cadence: M at every 4 days against Casto Flasher's every 3 weeks. M also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

M ships an update every 4 days, Casto Flasher every 3 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | M | Casto Flasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/m-jet-diagnostic/id6763019613/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 14 MB | 66 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [M-JET FLASHER GmbH](https://appshunter.io/developer/1868671631) | [ZL Softare GmbH](https://appshunter.io/developer/6788573355) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-jet-diagnostic/id6763019613)

This professional diagnostic tool connects wirelessly to BRP vehicles, allowing users to read and clear fault codes, monitor live data, and generate diagnostic reports. It's designed for both private owners and professional mechanics to maintain their Sea-Doo, Ski-Doo, and Can-Am vehicles.

**Highlights:** Read & clear fault codes, Live data monitoring, Vehicle identification, Diagnostic reports, Wireless vehicle connection

**Features:** Vision Pro support

**In-app purchases:** none


### Casto Flasher

[App page](https://appshunter.io/ios/app/casto-flasher/id6797246314)

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

**In-app purchases:** none


## Frequently asked questions

### Is M free?

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

### Is Casto Flasher free?

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

### Do M or Casto Flasher have ads?

Neither M nor Casto Flasher shows ads.

### Which is updated more often, M or Casto Flasher?

M ships an update every 4 days, and Casto Flasher every 3 weeks. Most recently, M was updated on November 9, 2026 and Casto Flasher on October 31, 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.*