# TK vs arzt

The clearest difference is rating: TK at 4.3 against arzt's 4.0. TK also leads on ratings volume (22 vs 1). arzt's advantage is review sentiment (96% vs 81%) and iOS requirement (15.6 vs 18.0). On price, update cadence, ads and in-app purchases 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, 4.3 against 4.0. That said, the two scores are not equally well evidenced: TK has 22 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 81% of TK's written reviews are positive against 96% of arzt's, so the app with the better star average is not the one people write more warmly about.

TK ships an update monthly, arzt every 6 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TK | arzt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (22 ratings)](https://appshunter.io/ios/app/tk-doc/id1435903815/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/arzt-direkt/id1605807406/reviews) |
| Number of ratings | **22** | 1 |
| Positive reviews | 81.0% of reviews | **96.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 44 MB | 67 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) | [zollsoft GmbH](https://appshunter.io/developer/703781245) |

## What reviewers say

### TK

[App page](https://appshunter.io/ios/app/tk-doc/id1435903815)

Access medical consultations, advice, and appointment scheduling all in one place. Get quick information on symptoms, lab results, and medical abbreviations. Find doctors and receive expert dental advice.

**Highlights:** Video consultations with doctors, 24/7 medical advice via chat or phone, Appointment scheduling, Symptom checker, Lab value checker, ICD code search, Dental prosthesis advice

**In-app purchases:** none


### arzt

[App page](https://appshunter.io/ios/app/arzt-direkt/id1605807406)

Connect with doctors online for consultations, prescriptions, and document sharing. Avoid travel and waiting times for appointments across various specialties. All costs are covered by health insurance.

**Highlights:** Intuitive doctor search, Fast specialist appointments, Online sick notes, Secure document exchange, Messenger contact with doctor, Easy appointment management

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TK free?

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

### Is arzt free?

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

### Which has better reviews, TK or arzt?

TK is rated higher. TK averages 4.3 out of 5 from 22 ratings, while arzt averages 4.0 from 1 ratings.

### Do TK or arzt have ads?

Neither TK nor arzt shows ads.

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

TK ships an update monthly, and arzt every 6 weeks. Most recently, TK was updated on October 26, 2026 and arzt on October 25, 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.*