# Calla vs IUD period tracker

The clearest difference is in-app purchases: IUD period tracker at none against Calla's 2. Calla's advantage is iOS requirement (16.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Calla sells 2 in-app purchases, starting at $7.99 per month. IUD period tracker asks for nothing beyond the download.

## The numbers

| Metric | Calla | IUD period tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iud-period-tracker/id6812722128/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | — | Free |
| Size | 69 MB | 3 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Arman Malkhasyan](https://appshunter.io/developer/6804423803) | [Hbrothers L.L.C.](https://appshunter.io/developer/1693397221) |

## What reviewers say

### Calla

[App page](https://appshunter.io/ios/app/calla-perimenopause-tracker/id6804423801)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calla Pro - Monthly | $7.99 | per month |
| Calla Pro - Yearly | $39.99 | per year |


### IUD period tracker

[App page](https://appshunter.io/ios/app/iud-period-tracker/id6812722128)

This app helps users understand and track their menstrual cycle and related symptoms, specifically designed for individuals with an IUD. It offers a private and focused experience to log bleeding, cramps, mood changes, and IUD checks, presenting cycle history and patterns in a simple calendar view.

**Highlights:** Track bleeding and spotting, Log cramps and intensity, Record symptoms (headaches, mood, etc.), Add personal notes, Log IUD checks, View period history and patterns, Store IUD type and insertion date

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calla free?

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

### Is IUD period tracker free?

IUD period tracker is free to download, with no in-app purchases.

### Do Calla or IUD period tracker have ads?

Neither Calla nor IUD period tracker 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.*