# LadyData vs Calla

The clearest difference is in-app purchases: Calla at none against LadyData's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. LadyData sells 2 in-app purchases, starting at $4.99 per month. Calla asks for nothing beyond the download.

## The numbers

| Metric | LadyData | Calla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/ladydata/id6746421602/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 33 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Dance Party](https://appshunter.io/developer/1879519970) | [Roxana Heitz](https://appshunter.io/developer/1890019363) |

## What reviewers say

### LadyData

[App page](https://appshunter.io/ios/app/ladydata/id6746421602)

This app helps women track their menstrual cycles and fertility. It allows for detailed recording of temperature, symptoms, and other cycle events to understand personal patterns. Designed for those practicing fertility awareness, it offers a clear, private way to monitor reproductive health.

**Highlights:** Cycle tracking, Basal body temperature recording, Cervical mucus tracking, Symptom logging, Pattern recognition, Privacy-focused design

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual LadyData Subscription | $29.99 | per year |


### Calla

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LadyData free?

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

### Is Calla free?

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

### Do LadyData or Calla have ads?

Neither LadyData 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.*