# LUKE.FIT vs Carbon Step

The clearest difference is ads: LUKE.FIT at none against Carbon Step's shown. LUKE.FIT also leads on iOS requirement (15.6 vs 17.6). Carbon Step's advantage is update cadence (every 9 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LUKE.FIT ships an update every 3 weeks, Carbon Step every 9 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | LUKE.FIT | Carbon Step |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 108 MB | 45 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nutrilize GmbH](https://appshunter.io/developer/1521442832) | [Mert Huseyin Ciloglu](https://appshunter.io/developer/1849760865) |

## What reviewers say

### LUKE.FIT

[App page](https://appshunter.io/ios/app/lukefit/id6502596229)

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

**In-app purchases:** none


### Carbon Step

[App page](https://appshunter.io/ios/app/carbon-step/id6754710198)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LUKE.FIT free?

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

### Is Carbon Step free?

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

### Do LUKE.FIT or Carbon Step have ads?

Carbon Step shows ads; LUKE.FIT does not.

### Which is updated more often, LUKE.FIT or Carbon Step?

LUKE.FIT ships an update every 3 weeks, and Carbon Step every 9 days. Most recently, LUKE.FIT was updated on October 27, 2026 and Carbon Step on October 25, 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.*