# MOTIONrelax vs Calla

The clearest difference is iOS requirement: MOTIONrelax at 12.0 against Calla's 15.1. 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.

## The numbers

| Metric | MOTIONrelax | Calla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/calla-period-tracker/id6761502864/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Size | 17 MB | 33 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [LOGICDATA Electronic & Software Entwicklungs GmbH](https://appshunter.io/developer/482335102) | [Roxana Heitz](https://appshunter.io/developer/1890019363) |

## What reviewers say

### MOTIONrelax

[App page](https://appshunter.io/ios/app/motionrelax/id6463143961)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calla

[App page](https://appshunter.io/ios/app/calla-period-tracker/id6761502864)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MOTIONrelax free?

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

### Is Calla free?

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

### Do MOTIONrelax or Calla have ads?

Neither MOTIONrelax nor Calla shows ads.

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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.*