# XTRAFIT vs TK

The clearest difference is rating: XTRAFIT at 4.6 against TK's 1.4. XTRAFIT also leads on iOS requirement (15.0 vs 18.0). TK's advantage is review sentiment (64% vs 50%). On price, ratings volume, update cadence 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.

XTRAFIT holds the better App Store score, 4.6 against 1.4. Both are backed by a comparable volume of ratings — 12 and 15 respectively. Written reviews complicate that: 50% of XTRAFIT's written reviews are positive against 64% of TK's, so the app with the better star average is not the one people write more warmly about.

XTRAFIT ships an update every 2 months, TK every 5 weeks. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | XTRAFIT | TK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (12 ratings)](https://appshunter.io/ios/app/xtrafit/id1643481427/reviews)** | [1.4 (15 ratings)](https://appshunter.io/ios/app/tk-ident/id6468877043/reviews) |
| Number of ratings | 12 | **15** |
| Positive reviews | 50.0% of reviews | **64.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 100 MB | 192 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [XTRAFIT Service GmbH](https://appshunter.io/developer/1643481429) | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) |

## What reviewers say

### XTRAFIT

[App page](https://appshunter.io/ios/app/xtrafit/id1643481427)

Manage your fitness journey from workout planning to membership details. This app centralizes all your training needs, offering a personalized experience. It integrates with HealthKit to track activity data and encourage consistent exercise.

**Highlights:** Workout planning, Membership management, Studio utilization tracking, Personalized training insights, HealthKit integration

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

**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 XTRAFIT free?

XTRAFIT 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, XTRAFIT or TK?

XTRAFIT is rated higher. XTRAFIT averages 4.6 out of 5 from 12 ratings, while TK averages 1.4 from 15 ratings.

### Do XTRAFIT or TK have ads?

Neither XTRAFIT nor TK shows ads.

### Which is updated more often, XTRAFIT or TK?

XTRAFIT ships an update every 2 months, and TK every 5 weeks. Most recently, XTRAFIT was updated on October 18, 2026 and TK on October 19, 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.*