# Changers Fit vs TK

The clearest difference is review sentiment: TK at 52% against Changers Fit's 30%. TK also leads on rating (4.2 vs 3.9) and monetization model (free vs ad-supported). Changers Fit's advantage is update cadence (monthly vs every 2 months) and ratings volume (19 vs 6). 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.

TK holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 19 and 6 respectively. Written reviews point the same way: 30% of Changers Fit's written reviews are positive against 52% of TK's.

Changers Fit ships an update monthly, TK every 2 months. The most recent releases landed on September 6, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Changers Fit | TK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (19 ratings)](https://appshunter.io/ios/app/changers-fit/id938264264/reviews) | **[4.2 (6 ratings)](https://appshunter.io/ios/app/tk-coach/id6444313653/reviews)** |
| Number of ratings | **19** | 6 |
| Positive reviews | 29.6% of reviews | **51.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 98 MB | 68 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Changers](https://appshunter.io/developer/930391921) | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) |

## What reviewers say

### Changers Fit

[App page](https://appshunter.io/ios/app/changers-fit/id938264264)

This app facilitates team-building and health promotion for companies through engaging challenges. Employees can track activities like steps, running, and cycling, earning rewards and contributing to CSR projects.

**Highlights:** Versatile team challenges (steps, running, cycling, CO₂), Flexible activity tracking (GPS, Apple Health, Google Fit, Strava), Gamification elements (leaderboards, coins, awards), Integrated reward system with company offers, CSR project integration (e.g., tree planting), Adaptable to company needs via SaaS platform

**Features:** Vision Pro support

**In-app purchases:** none


### TK

[App page](https://appshunter.io/ios/app/tk-coach/id6444313653)

Achieve all-round wellbeing with personalized plans for fitness, nutrition, and relaxation. Set goals, track progress with self-tests, and receive motivating tips and recipe suggestions. Integrates with smartwatches for a holistic health overview.

**Highlights:** Personalized coaching plans, Fitness exercises and audio coaching, Extensive recipe database, Meditation and mindfulness exercises, Smartwatch and fitness tracker integration, Progress tracking and self-tests

**In-app purchases:** none


## Frequently asked questions

### Is Changers Fit free?

Changers Fit 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, Changers Fit or TK?

TK is rated higher. Changers Fit averages 3.9 out of 5 from 19 ratings, while TK averages 4.2 from 6 ratings.

### Do Changers Fit or TK have ads?

Neither Changers Fit nor TK shows ads.

### Which is updated more often, Changers Fit or TK?

Changers Fit ships an update monthly, and TK every 2 months. Most recently, Changers Fit was updated on September 6, 2026 and TK on September 22, 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.*