4.2
136K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this app

“Die Techniker” provides its customers with a digital all-purpose tool. For example, you can use this app to upload your receipts for reimbursement, view existing sick notes, or do something for your fitness while collecting bonus points.

FEATURES

- Protection of sensitive data through secure login (e.g. no rooted devices allowed)
- Transmission of sick notes and documents
- Send messages to the Techniker
- Receive letters from the Techniker
- Use the TK bonus program completely digitally
- TK-Fit with access to Google Fit, Samsung Health or Fitbit
- Overview of prescribed drugs of the last six years
- Apply for reimbursement of costs for medicines, vaccines, osteopathy and health courses

SECURITY

As a statutory health insurance company, we are committed to the best possible protection of your health data. That's why we check your identity when setting up TK-App on your smartphone. You can either identify yourself online using your ID card and PIN via the Nect Wallet app or by entering an activation code. We‘ll send you the activation code via post.
You can find everything else about our security concept at https://www.tk.de/techniker/2023678

Please note: The use od TK-App with rooted devices is not possible for security reasons.

FURTHER DEVELOPMENT

We are continuously adding new features to the TK-App - your ideas and hints help us most. Write us directly and anonymously via the feedback function in the TK-App.

BONUS & TK-Fit

Membership in a football club, regular check-ups at the dentist, the non-smoking course after New Year's Day - all these things earn points for the TK bonus program. And thanks to the connection to Google Fit, Samsung Health or Fitbit, you'll receive points for many other activities.

TK-SAFE

With TK-Safe you have all relevant health data at a glance: Your visits to the doctor, diagnoses, medication, vaccinations, preventative medical checkups and much more.

Please note that TK-Fit and TK-Safe are not available in English yet.

REQUIREMENTS

For the TK-App:
- TK customer
- Android 10 or higher
- Unmodified Android operating system, ie. no Root (For more information, see https://www.tk.de/techniker/2023674)

For TK-Fit:
- Step counting using Google Fit, Samsung Health or Fitbit and your smartphone or a compatible fitness tracker.

ACCESSIBILITY

We aim at providing you an app that is as barrier-free as possible. You can find the accessibility statement at:
https://www.tk.de/techniker/2137808
Updated on
Jun 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 7 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
133K reviews
Ali Shams
March 14, 2026
It was a good app, but for the past few months, it has had an annoying bug. At first, after initialization and enabling fingerprint login, it works that day, and you can log in without any problems. However, later it becomes impossible to log in; it gets stuck in a loop of requiring the fingerprint. Even canceling the fingerprint recognition and trying to log in with the password doesn't work. You have to clear the app's data and set it up with the activation code again! I'm running stock One UI
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Techniker Krankenkasse (TK)
March 17, 2026
Hello, we apologize for any inconvenience that this has caused. Please contact our support team via tk.app@tk.de for help. Yours sincerely, your TK-App-Team.
Joe Carioti (JoeQCar)
August 14, 2024
As a native English speaker who is learning German, this app makes it pretty easy. Dealing with health issues is never a good time to be learning a language. The fact that most of the documents and screens are in English It's very helpful. Much better than the service and app I was using from other German insurance companies that I have used previously, they were Not-A-OK.
3 people found this review helpful
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Techniker Krankenkasse (TK)
August 14, 2024
Thank you very much! We are very happy about your feedback. Kind regards, your TK-App
Haroun
May 27, 2026
After the last update, I can no longer login on GrapheneOS. Edit: GrapheneOS is much more secure than any other "supported" android though. Have you considered using the standard Android hardware attestation API to verify the hardware, OS and app, intead of using the Integrity API?
2 people found this review helpful
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Techniker Krankenkasse (TK)
May 28, 2026
Vielen Dank für Ihr Feedback! Leider haben wir nicht genügend Zeichen, um Ihre Anliegen umfassend zu beantworten. Schreiben Sie uns gerne unter tk.app@tk.de, damit wir Ihr Anliegen detaillierter besprechen können. Wir freuen uns auf Ihre Nachricht! Freundliche Grüße, Ihre TK-App

What’s new

TK-Safe:
- The document preview is now also available while using the editing mode.

TK-Fit:
- Fitbit is now Google Health

Bugfixes:
- We have fixed a bug that might have caused problems when launching the app on Huawei, Oppo and OnePlus devices.
- Minor bugs have been fixed.