# Activ Centrum vs SR Companion

The clearest difference is review sentiment: SR Companion at 100% against Activ Centrum's 50%. SR Companion also leads on update cadence (weekly vs every 2 months). Activ Centrum's advantage is price (Free vs $9.99) and iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Activ Centrum is free to download; SR Companion costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Activ Centrum ships an update every 2 months, SR Companion weekly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Activ Centrum | SR Companion |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sr-companion/id6758279717/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Paid |
| Size | 106 MB | 9 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Activ Centrum Aachen GmbH](https://appshunter.io/developer/1542431907) | [Gregory Burlingame](https://appshunter.io/developer/1871946798) |

## What reviewers say

### 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

**Features:** Vision Pro support

**In-app purchases:** none


### SR Companion

[App page](https://appshunter.io/ios/app/sr-companion/id6758279717)

This app connects to your SmartRow sensor to display real-time rowing metrics, force curves, and power data. It offers detailed technique feedback with a stroke scoring system and customizable audio cues for milestones and achievements.

**Highlights:** Real-time rowing metrics (pace, stroke rate, calories), Live force curve and power graph, Stroke scoring for technique feedback, Heart rate zone tracking, Apple Watch heart rate monitoring, FTMS broadcast for third-party apps

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Activ Centrum free?

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

### Is SR Companion free?

SR Companion costs $9.99, with no in-app purchases.

### Do Activ Centrum or SR Companion have ads?

Neither Activ Centrum nor SR Companion shows ads.

### Which is updated more often, Activ Centrum or SR Companion?

Activ Centrum ships an update every 2 months, and SR Companion weekly. Most recently, Activ Centrum was updated on October 29, 2026 and SR Companion on October 28, 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.*