# Tennis Zone vs slamstr

The clearest difference is in-app purchases: slamstr at none against Tennis Zone's 4. slamstr also leads on update cadence (fortnightly vs every 4 months). Tennis Zone's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Tennis Zone sells 4 one-off in-app purchases. slamstr asks for nothing beyond the download.

Tennis Zone ships an update every 4 months, slamstr fortnightly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Tennis Zone | slamstr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/tennis-zone/id1584313857/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 146 MB | 54 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Petra Becker](https://appshunter.io/developer/1584313859) | [slamstr GmbH](https://appshunter.io/developer/1746273779) |

## What reviewers say

### Tennis Zone

[App page](https://appshunter.io/ios/app/tennis-zone/id1584313857)

This app provides structured tennis training with drills, games, and coordination exercises tailored for different age groups and skill levels. It helps users plan perfect training sessions and develop technique, tactics, and movement.

**Highlights:** Systematic tennis training, Drills for technique, Games for tactics, Coordinative tasks, Age-appropriate content, Performance adaptation

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2nd Positions Drills & Games | $1.99 | one-time |
| Funny Drills for Children | $2.99 | one-time |
| 1st Positions Drills & Games | $3.99 | one-time |
| Drills & Games for Children | $3.99 | one-time |


### slamstr

[App page](https://appshunter.io/ios/app/slamstr/id6502635375)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tennis Zone free?

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

### Is slamstr free?

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

### Do Tennis Zone or slamstr have ads?

slamstr shows ads; Tennis Zone does not.

### Which is updated more often, Tennis Zone or slamstr?

Tennis Zone ships an update every 4 months, and slamstr fortnightly. Most recently, Tennis Zone was updated on October 14, 2026 and slamstr on October 11, 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.*