# Challenger@Work vs PulseFit MK

The clearest difference is update cadence: PulseFit MK at every 6 days against Challenger@Work's every 2 months. On price, ads, 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.

Challenger@Work ships an update every 2 months, PulseFit MK every 6 days. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Challenger@Work | PulseFit MK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 11 MB | 87 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Green IT](https://appshunter.io/developer/1500914276) | [KA Digital, LLC](https://appshunter.io/developer/1800085431) |

## What reviewers say

### Challenger@Work

[App page](https://appshunter.io/ios/app/challengerwork/id1660095565)

**Features:** macOS Compatibility

**In-app purchases:** none


### PulseFit MK

[App page](https://appshunter.io/ios/app/pulsefit-mk/id6755091250)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Challenger@Work free?

Challenger@Work is free to download, with no in-app purchases.

### Is PulseFit MK free?

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

### Do Challenger@Work or PulseFit MK have ads?

Neither Challenger@Work nor PulseFit MK shows ads.

### Which is updated more often, Challenger@Work or PulseFit MK?

Challenger@Work ships an update every 2 months, and PulseFit MK every 6 days. Most recently, Challenger@Work was updated on September 17, 2026 and PulseFit MK on September 14, 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.*