# Intervals One vs HealthMirror

The clearest difference is in-app purchases: HealthMirror at none against Intervals One's 3. Intervals One's advantage is iOS requirement (17.0 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Intervals One sells 3 in-app purchases, starting at $1.99 per month. HealthMirror asks for nothing beyond the download.

## The numbers

| Metric | Intervals One | HealthMirror |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 64 MB | 1 MB |
| Requires iOS | **17.0** | 26.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ninety Six Software Ltd](https://appshunter.io/developer/1728731100) | [Xiao Zhang](https://appshunter.io/developer/1855552754) |

## What reviewers say

### Intervals One

[App page](https://appshunter.io/ios/app/intervals-one-interval-timer/id6741439106)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Annual | $14.99 | per year |
| Pro Lifetime | $19.99 | one-time |


### HealthMirror

[App page](https://appshunter.io/ios/app/healthmirror-auto-sync/id6779814305)

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

**In-app purchases:** none


## Frequently asked questions

### Is Intervals One free?

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

### Is HealthMirror free?

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

### Do Intervals One or HealthMirror have ads?

Neither Intervals One nor HealthMirror 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.*