# Nutrogen vs CrossFit Dux

The clearest difference is update cadence: Nutrogen at weekly against CrossFit Dux's every 2 months. CrossFit Dux's advantage is device support (3 vs 1). On price, ads, in-app purchases 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.

Nutrogen ships an update weekly, CrossFit Dux every 2 months. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Nutrogen | CrossFit Dux |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 95 MB | 96 MB |
| Requires iOS | 16.0 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nutrogen Labs](https://appshunter.io/developer/1775811976) | [The Trustee for Wilson Family Trust](https://appshunter.io/developer/6780672914) |

## What reviewers say

### Nutrogen

[App page](https://appshunter.io/ios/app/nutrogen/id6737293380)

**In-app purchases:** none


### CrossFit Dux

[App page](https://appshunter.io/ios/app/crossfit-dux/id6756683074)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nutrogen free?

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

### Is CrossFit Dux free?

CrossFit Dux is free to download, with no in-app purchases.

### Do Nutrogen or CrossFit Dux have ads?

Neither Nutrogen nor CrossFit Dux shows ads.

### Which is updated more often, Nutrogen or CrossFit Dux?

Nutrogen ships an update weekly, and CrossFit Dux every 2 months. Most recently, Nutrogen was updated on November 8, 2026 and CrossFit Dux on November 9, 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.*