# ČSTS vs App ČTS

The clearest difference is in-app purchases: ČSTS at none against App ČTS's 1. ČSTS also leads on iOS requirement (13.0 vs 15.0). App ČTS's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. App ČTS sells 1 in-app purchase, starting at $14.99 per year. ČSTS asks for nothing beyond the download.

ČSTS ships an update every 5 months, App ČTS every 2 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ČSTS | App ČTS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 2 MB | 8 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Designeo Creative s.r.o.](https://appshunter.io/developer/618192062) | [Cesky tenisovy svaz z. s.](https://appshunter.io/developer/1684928211) |

## What reviewers say

### ČSTS

[App page](https://appshunter.io/ios/app/csts/id1643130186)

**Features:** macOS Compatibility

**In-app purchases:** none


### App ČTS

[App page](https://appshunter.io/ios/app/app-cts/id6448529197)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Předplatné 12 měsíců | $14.99 | per year |


## Frequently asked questions

### Is ČSTS free?

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

### Is App ČTS free?

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

### Do ČSTS or App ČTS have ads?

Neither ČSTS nor App ČTS shows ads.

### Which is updated more often, ČSTS or App ČTS?

ČSTS ships an update every 5 months, and App ČTS every 2 months. Most recently, ČSTS was updated on October 1, 2026 and App ČTS on October 2, 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.*