# AiroStep vs Ambryx

AiroStep and Ambryx 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. AiroStep sells 2 in-app purchases, starting at $2.99 per month and Ambryx sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | AiroStep | Ambryx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 55 MB | 23 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ruslan Kuksa](https://appshunter.io/developer/1634614389) | [Iso Lift, LLC](https://appshunter.io/developer/1814384999) |

## What reviewers say

### AiroStep

[App page](https://appshunter.io/ios/app/airostep-step-counter/id6747456854)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AiroStep Pro - Monthly | $2.99 | per month |
| AiroStep Pro - Annual | $24.99 | per year |


### Ambryx

[App page](https://appshunter.io/ios/app/ambryx/id6758559825)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ambryx Free Trial | Free | one-time |
| StrideFlow Pro | $2.99 | one-time |


## Frequently asked questions

### Is AiroStep free?

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

### Is Ambryx free?

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

### Do AiroStep or Ambryx have ads?

Neither AiroStep nor Ambryx 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.*