# Calla vs Ember

Calla and Ember are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Calla sells 2 in-app purchases, starting at $7.99 per month and Ember sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Calla | Ember |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 69 MB | 65 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Arman Malkhasyan](https://appshunter.io/developer/6804423803) | [MASSIMO JAN BUONFRATE](https://appshunter.io/developer/6816917407) |

## 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 |


### Ember

[App page](https://appshunter.io/ios/app/ember-perimenopause-tracker/id6816917405)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Annual | $49.99 | per year |
| Ember Lifetime | $500.00 | one-time |


## Frequently asked questions

### Is Calla free?

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

### Is Ember free?

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

### Do Calla or Ember have ads?

Neither Calla nor Ember 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.*