# ZT vs СТО Вязовский

The clearest difference is iOS requirement: ZT at 12.0 against СТО Вязовский's 15.0.0. 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.

## The numbers

| Metric | ZT | СТО Вязовский |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (292 ratings)](https://appshunter.io/ios/app/zt/id1214656147/reviews)** | — |
| Number of ratings | **292** | — |
| Positive reviews | 18.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 121 MB | 43 MB |
| Requires iOS | **12.0** | 15.0.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ZTK, OOO](https://appshunter.io/developer/1577726159) | [Alexander Muratov](https://appshunter.io/developer/1636177596) |

## What reviewers say

### ZT

[App page](https://appshunter.io/ios/app/zt/id1214656147)

Connect with incarcerated individuals through a comprehensive mobile service. Send letters, photos, make audio/video calls, and transfer funds. Offers entertainment options like puzzles and games to enrich communication.

**Highlights:** Send electronic letters and photos, Make audio and video calls, Transfer money to inmate accounts, Add puzzles and games to letters, Instant printing at correctional facilities

**Features:** Vision Pro support

**In-app purchases:** none


### СТО Вязовский

[App page](https://appshunter.io/ios/app/id6814745645)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZT free?

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

### Is СТО Вязовский free?

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

### Do ZT or СТО Вязовский have ads?

Neither ZT nor СТО Вязовский shows ads.

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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.*