# SmartVUS zn vs Twintex

The clearest difference is update cadence: Twintex at daily against SmartVUS zn's every 2 months. Twintex also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SmartVUS zn ships an update every 2 months, Twintex daily. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SmartVUS zn | Twintex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 9 MB | 63 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SonopTek Co, Ltd.](https://appshunter.io/developer/1077612429) | [Twintex Instrument Ltd.](https://appshunter.io/developer/1589356981) |

## What reviewers say

### SmartVUS zn

[App page](https://appshunter.io/ios/app/smartvus-zn/id1547566836)

**Features:** macOS Compatibility

**In-app purchases:** none


### Twintex

[App page](https://appshunter.io/ios/app/twintex/id1589356979)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartVUS zn free?

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

### Is Twintex free?

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

### Do SmartVUS zn or Twintex have ads?

Neither SmartVUS zn nor Twintex shows ads.

### Which is updated more often, SmartVUS zn or Twintex?

SmartVUS zn ships an update every 2 months, and Twintex daily. Most recently, SmartVUS zn was updated on September 25, 2026 and Twintex 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.*