# M vs ATIS Wind Guage

The clearest difference is update cadence: ATIS Wind Guage at every 3 days against M's every 3 months. M's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and device support 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 3 months, ATIS Wind Guage every 3 days. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | M | ATIS Wind Guage |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 37 MB | 3 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MATATALAB CO.,LTD.](https://appshunter.io/developer/1547380894) | [ATIS Co., LTD.](https://appshunter.io/developer/6808108131) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-scope/id6475326425)

**Features:** macOS Compatibility

**In-app purchases:** none


### ATIS Wind Guage

[App page](https://appshunter.io/ios/app/atis-wind-guage/id6808108129)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M free?

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

### Is ATIS Wind Guage free?

ATIS Wind Guage is free to download, with no in-app purchases.

### Do M or ATIS Wind Guage have ads?

Neither M nor ATIS Wind Guage shows ads.

### Which is updated more often, M or ATIS Wind Guage?

M ships an update every 3 months, and ATIS Wind Guage every 3 days. Most recently, M was updated on September 29, 2026 and ATIS Wind Guage on October 6, 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.*