# Corefit.Plus vs Knox Studio

The clearest difference is ads: Corefit.Plus at none against Knox Studio's shown. Corefit.Plus also leads on update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Corefit.Plus ships an update every 9 days, Knox Studio every 2 months. Both last shipped on September 17, 2026.

## The numbers

| Metric | Corefit.Plus | Knox Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 29 MB | 123 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aerobit Technologies Limited](https://appshunter.io/developer/1267192246) | [Knox Fit LLP](https://appshunter.io/developer/1382590033) |

## What reviewers say

### Corefit.Plus

[App page](https://appshunter.io/ios/app/corefitplus/id1499499055)

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

**In-app purchases:** none


### Knox Studio

[App page](https://appshunter.io/ios/app/knox-studio/id6467772672)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Corefit.Plus free?

Corefit.Plus is free to download, with no in-app purchases.

### Is Knox Studio free?

Knox Studio is free to download, with no in-app purchases.

### Do Corefit.Plus or Knox Studio have ads?

Knox Studio shows ads; Corefit.Plus does not.

### Which is updated more often, Corefit.Plus or Knox Studio?

Corefit.Plus ships an update every 9 days, and Knox Studio every 2 months. Most recently, Corefit.Plus was updated on September 17, 2026 and Knox Studio on September 17, 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.*