# INJOY Köln vs Activ Centrum

The clearest difference is update cadence: Activ Centrum at every 2 months against INJOY Köln's every 10 months. INJOY Köln's advantage is iOS requirement (10.0 vs 15.0). 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.

INJOY Köln ships an update every 10 months, Activ Centrum every 2 months. The most recent releases landed on September 27, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | INJOY Köln | Activ Centrum |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 137 MB | 96 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Innovatise](https://appshunter.io/developer/425694968) | [Activ Centrum Aachen GmbH](https://appshunter.io/developer/1542431907) |

## What reviewers say

### INJOY Köln

[App page](https://appshunter.io/ios/app/injoy-koln/id1031214935)

**In-app purchases:** none


### Activ Centrum

[App page](https://appshunter.io/ios/app/activ-centrum/id1542431905)

Stay informed about your fitness center's news, offers, and events. Access class schedules, training tips, and contact information directly from your phone. Share exciting updates and promotions with friends easily.

**Highlights:** Real-time news and updates, Current class schedules, Offers and promotions, Contact information and opening hours, Training tips, Shareable content, Apple HealthKit integration

**In-app purchases:** none


## Frequently asked questions

### Is INJOY Köln free?

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

### Is Activ Centrum free?

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

### Do INJOY Köln or Activ Centrum have ads?

Neither INJOY Köln nor Activ Centrum shows ads.

### Which is updated more often, INJOY Köln or Activ Centrum?

INJOY Köln ships an update every 10 months, and Activ Centrum every 2 months. Most recently, INJOY Köln was updated on September 27, 2026 and Activ Centrum on October 3, 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.*