# AiroStep vs One Step Challenges

The clearest difference is update cadence: One Step Challenges at every 3 days against AiroStep's every 8 months. One Step Challenges also leads on iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AiroStep sells 2 in-app purchases, starting at $2.99 per month and One Step Challenges sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

AiroStep ships an update every 8 months, One Step Challenges every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AiroStep | One Step Challenges |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 days** |
| Size | 70 MB | 30 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ruslan Kuksa](https://appshunter.io/developer/1634614389) | [JUSTIN MORGAN MAYEUR](https://appshunter.io/developer/1896273983) |

## What reviewers say

### AiroStep

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

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

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


### One Step Challenges

[App page](https://appshunter.io/ios/app/one-step-challenges/id6766305390)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Step Pro Monthly | $4.99 | per month |
| One Step Pro Annual | $34.99 | per year |


## Frequently asked questions

### Is AiroStep free?

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

### Is One Step Challenges free?

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

### Do AiroStep or One Step Challenges have ads?

Neither AiroStep nor One Step Challenges shows ads.

### Which is updated more often, AiroStep or One Step Challenges?

AiroStep ships an update every 8 months, and One Step Challenges every 3 days. Most recently, AiroStep was updated on October 28, 2026 and One Step Challenges on October 31, 2026.

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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.*