# Calmer OS vs MAWL

The clearest difference is update cadence: MAWL at every 3 weeks against Calmer OS's every 2 months. 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.

Calmer OS ships an update every 2 months, MAWL every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Calmer OS | MAWL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 12 MB | 1 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Petr Betak](https://appshunter.io/developer/1775162907) | [GOSPEL AMBITION INC](https://appshunter.io/developer/1483836866) |

## What reviewers say

### Calmer OS

[App page](https://appshunter.io/ios/app/calmer-os/id6737633514)

**Features:** macOS Compatibility

**In-app purchases:** none


### MAWL

[App page](https://appshunter.io/ios/app/mawl/id6752310033)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calmer OS free?

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

### Is MAWL free?

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

### Do Calmer OS or MAWL have ads?

Neither Calmer OS nor MAWL shows ads.

### Which is updated more often, Calmer OS or MAWL?

Calmer OS ships an update every 2 months, and MAWL every 3 weeks. Most recently, Calmer OS was updated on October 30, 2026 and MAWL on October 30, 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.*