# Marking3D vs ViOL Hub

The clearest difference is in-app purchases: ViOL Hub at none against Marking3D's 2. ViOL Hub also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.6). Marking3D's advantage is update cadence (every 8 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Marking3D sells 2 in-app purchases, starting at $89.99 per month. ViOL Hub asks for nothing beyond the download.

Marking3D ships an update every 8 days, ViOL Hub every 6 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Marking3D | ViOL Hub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Size | 141 MB | 18 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Augmented Anatomy](https://appshunter.io/developer/1492251958) | [Appknot](https://appshunter.io/developer/459436737) |

## What reviewers say

### Marking3D

[App page](https://appshunter.io/ios/app/marking3d/id6737849427)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic One Month | $89.99 | per month |
| Basic One Year | $899.00 | per year |


### ViOL Hub

[App page](https://appshunter.io/ios/app/viol-hub/id6738897457)

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

**In-app purchases:** none


## Frequently asked questions

### Is Marking3D free?

Marking3D is free to download, with in-app purchases available.

### Is ViOL Hub free?

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

### Do Marking3D or ViOL Hub have ads?

Marking3D shows ads; ViOL Hub does not.

### Which is updated more often, Marking3D or ViOL Hub?

Marking3D ships an update every 8 days, and ViOL Hub every 6 weeks. Most recently, Marking3D was updated on October 8, 2026 and ViOL Hub on October 4, 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.*