# One Step Challenges vs kach

The clearest difference is ads: One Step Challenges at none against kach's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. One Step Challenges sells 2 in-app purchases, starting at $4.99 per month and kach sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

One Step Challenges ships an update every 3 days, kach every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | One Step Challenges | kach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 30 MB | 100 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [JUSTIN MORGAN MAYEUR](https://appshunter.io/developer/1896273983) | [Boris Varshavskii](https://appshunter.io/developer/6779245696) |

## What reviewers say

### 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 |


### kach

[App page](https://appshunter.io/ios/app/kach-gym-and-workout-tracker/id6779245693)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $7.99 | one-time |


## Frequently asked questions

### Is One Step Challenges free?

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

### Is kach free?

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

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

kach shows ads; One Step Challenges does not.

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

One Step Challenges ships an update every 3 days, and kach every 2 days. Most recently, One Step Challenges was updated on October 31, 2026 and kach 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.*