# Wind Correction vs MYSTONES

The clearest difference is in-app purchases: Wind Correction at none against MYSTONES's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MYSTONES sells 2 in-app purchases, starting at $9.99 per month. Wind Correction asks for nothing beyond the download.

Wind Correction ships an update every 3 weeks, MYSTONES monthly. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Wind Correction | MYSTONES |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 4 MB | 52 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Galli](https://appshunter.io/developer/1779118366) | [MYSTONES GROUP SARL](https://appshunter.io/developer/1852876596) |

## What reviewers say

### Wind Correction

[App page](https://appshunter.io/ios/app/wind-correction/id6738150976)

**In-app purchases:** none


### MYSTONES

[App page](https://appshunter.io/ios/app/mystones/id6755256553)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | per month |
| Premium Yearly | $99.99 | per year |


## Frequently asked questions

### Is Wind Correction free?

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

### Is MYSTONES free?

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

### Do Wind Correction or MYSTONES have ads?

Neither Wind Correction nor MYSTONES shows ads.

### Which is updated more often, Wind Correction or MYSTONES?

Wind Correction ships an update every 3 weeks, and MYSTONES monthly. Most recently, Wind Correction was updated on October 14, 2026 and MYSTONES on October 1, 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.*