# iGuyton vs NoR∆ Dynamics

The clearest difference is in-app purchases: NoR∆ Dynamics at none against iGuyton's 1. NoR∆ Dynamics also leads on update cadence (every 3 days vs every 15 months). iGuyton's advantage is iOS requirement (15.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. iGuyton sells 1 in-app purchase, starting at $9.99 per year. NoR∆ Dynamics asks for nothing beyond the download.

iGuyton ships an update every 15 months, NoR∆ Dynamics every 3 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iGuyton | NoR∆ Dynamics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 days** |
| Size | 55 MB | 4 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Pietro Bertini](https://appshunter.io/developer/1769996267) | [Lukas Madeira](https://appshunter.io/developer/1880415911) |

## What reviewers say

### iGuyton

[App page](https://appshunter.io/ios/app/iguyton-venous-return/id6749528826)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iGuyton Premium | $9.99 | per year |


### NoR∆ Dynamics

[App page](https://appshunter.io/ios/app/nor-dynamics/id6759738264)

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

**In-app purchases:** none


## Frequently asked questions

### Is iGuyton free?

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

### Is NoR∆ Dynamics free?

NoR∆ Dynamics is free to download, with no in-app purchases.

### Do iGuyton or NoR∆ Dynamics have ads?

Neither iGuyton nor NoR∆ Dynamics shows ads.

### Which is updated more often, iGuyton or NoR∆ Dynamics?

iGuyton ships an update every 15 months, and NoR∆ Dynamics every 3 days. Most recently, iGuyton was updated on October 30, 2026 and NoR∆ Dynamics 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.*