# SLASTIC GYM vs In Rock

The clearest difference is update cadence: In Rock at weekly against SLASTIC GYM's every 24 months. In Rock also leads on device support. SLASTIC GYM's advantage is iOS requirement (12.0.0 vs 16.4). On price and in-app purchases there is nothing between them.

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

SLASTIC GYM ships an update every 24 months, In Rock weekly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SLASTIC GYM | In Rock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/in-rock/id6742411749/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 24 months | **Weekly** |
| Monetization | — | Free |
| Size | 43 MB | 80 MB |
| Requires iOS | **12.0.0** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Raul cesar Team](https://appshunter.io/developer/1701402781) | [In Rock Rocodromos S.L.](https://appshunter.io/developer/1798242857) |

## What reviewers say

### SLASTIC GYM

[App page](https://appshunter.io/ios/app/slastic-gym/id6499517919)

**In-app purchases:** none


### In Rock

[App page](https://appshunter.io/ios/app/in-rock/id6742411749)

Easily book sports facilities and sign up for activities directly from your smartphone. Make payments, send private messages, and access center information with just a few clicks.

**Highlights:** Book facilities, Sign up for activities, Pay via smartphone, Send private messages, View center information, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is SLASTIC GYM free?

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

### Is In Rock free?

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

### Which is updated more often, SLASTIC GYM or In Rock?

SLASTIC GYM ships an update every 24 months, and In Rock weekly. Most recently, SLASTIC GYM was updated on November 8, 2026 and In Rock on October 30, 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.*