# FitX App vs TK

The clearest difference is rating: FitX App at 3.5 against TK's 1.4. FitX App also leads on update cadence (fortnightly vs every 5 weeks) and device support (3 vs 1). On price, review sentiment, ratings volume and ads there is nothing between them.

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

FitX App holds the better App Store score, 3.5 against 1.4. Both are backed by a comparable volume of ratings — 10 and 14 respectively. Written reviews complicate that: 64% of FitX App's written reviews are positive against 65% of TK's, so the app with the better star average is not the one people write more warmly about.

FitX App ships an update fortnightly, TK every 5 weeks. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | FitX App | TK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (10 ratings)](https://appshunter.io/ios/app/fitx-app/id6444621085/reviews)** | [1.4 (14 ratings)](https://appshunter.io/ios/app/tk-ident/id6468877043/reviews) |
| Number of ratings | 10 | **14** |
| Positive reviews | 63.6% of reviews | **65.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 109 MB | 192 MB |
| Requires iOS | **15** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FitX Verwaltung GmbH](https://appshunter.io/developer/1641136360) | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) |

## What reviewers say

### FitX App

[App page](https://appshunter.io/ios/app/fitx-app/id6444621085)

Achieve your fitness goals, from fitting into old clothes to building muscle. This app simplifies your journey to a healthier, more mobile you. Get ready to feel great in your body.

**Highlights:** Body recomposition guidance, Improved flexibility, Muscle building support, Personalized fitness journey, Studio integration

**Features:** Apple Wallet

**In-app purchases:** none


### TK

[App page](https://appshunter.io/ios/app/tk-ident/id6468877043)

This app allows secure access to digital health services using your health insurance ID. It enables login to various health applications, manages registered devices, and handles consent settings for your health data.

**Highlights:** Create and use personal health ID, Login to digital health applications, Manage registered devices, Manage consents and authorizations, Secure identification via ID card or health card

**In-app purchases:** none


## Frequently asked questions

### Is FitX App free?

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

### Is TK free?

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

### Which has better reviews, FitX App or TK?

FitX App is rated higher. FitX App averages 3.5 out of 5 from 10 ratings, while TK averages 1.4 from 14 ratings.

### Do FitX App or TK have ads?

Neither FitX App nor TK shows ads.

### Which is updated more often, FitX App or TK?

FitX App ships an update fortnightly, and TK every 5 weeks. Most recently, FitX App was updated on September 22, 2026 and TK on September 24, 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.*