# Natviol vs Omtech SMF 2

The clearest difference is iOS requirement: Natviol at 13.0 against Omtech SMF 2's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Natviol ships an update every 5 weeks, Omtech SMF 2 every 3 weeks. The most recent releases landed on October 4, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Natviol | Omtech SMF 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 23 MB | 45 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lukasz Witkowski](https://appshunter.io/developer/1638942279) | [Omtech Sp. z o.o.](https://appshunter.io/developer/1223438523) |

## What reviewers say

### Natviol

[App page](https://appshunter.io/ios/app/natviol/id1638942277)

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

**In-app purchases:** none


### Omtech SMF 2

[App page](https://appshunter.io/ios/app/omtech-smf-2/id6753060151)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Natviol free?

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

### Is Omtech SMF 2 free?

Omtech SMF 2 is free to download, with no in-app purchases.

### Do Natviol or Omtech SMF 2 have ads?

Neither Natviol nor Omtech SMF 2 shows ads.

### Which is updated more often, Natviol or Omtech SMF 2?

Natviol ships an update every 5 weeks, and Omtech SMF 2 every 3 weeks. Most recently, Natviol was updated on October 4, 2026 and Omtech SMF 2 on September 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.*