# ТСД vs Viascan

The clearest difference is in-app purchases: Viascan at none against ТСД's 1. ТСД's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ТСД sells 1 in-app purchase, starting at $17.99 per year. Viascan asks for nothing beyond the download.

ТСД ships an update monthly, Viascan every 2 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | ТСД | Viascan |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 119 MB | 42 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Popolitov Evgenyi](https://appshunter.io/developer/1541860378) | [Maksim L. Kiryushin](https://appshunter.io/developer/1540285675) |

## What reviewers say

### ТСД

[App page](https://appshunter.io/ios/app/id1545002912)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ТСД: 1 год | $17.99 | per year |


### Viascan

[App page](https://appshunter.io/ios/app/viascan/id1587332007)

**In-app purchases:** none


## Frequently asked questions

### Is ТСД free?

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

### Is Viascan free?

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

### Do ТСД or Viascan have ads?

Neither ТСД nor Viascan shows ads.

### Which is updated more often, ТСД or Viascan?

ТСД ships an update monthly, and Viascan every 2 months. Most recently, ТСД was updated on November 3, 2026 and Viascan on November 7, 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.*