Comparison

TK vs Fa2fitness

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TK

Manage your health insurance digitally. Upload receipts, view sick notes, and track fitness for bonus points. Securely communicate with your provider and access your health data.

Highlights
  • Digital receipt uploads
  • View sick notes
  • Secure messaging with provider
  • Digital bonus program
  • Fitness tracking via Apple Health/Fitbit
  • Access to health data (TK-Safe)
Read full description

“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 jailbreak 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 Apple 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 www.tk.de/tk/942778 Note: The use of TK-App with jailbroken devices is generally not possible. FURTHER DEVELOPMENT We are continuously adding new features to TK-App - your ideas and hints help us most. Write us directly and anonymously via the feedback function in 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 Apple 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 - iOS 18 or higher - No device with modified operating system, e.g. Jailbreak (For more information, see www.tk.de/tk/942782) For TK-Fit: - Step counting using Apple Health or Fitbit and your smartphone or a compatible fitness tracker (for information on TK-Fit, see www.tk.de/tk/938122) 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.

About

Fa2fitness

Features
Read full description

Guiding you through your health and fitness journey! - Book classes online in just a few clicks - Create your own exercise programmes or select from a range provided by the club - Track your progress from all your workouts - Keep track of your body measurements and progress - Take part in regular fitness challenges - Contact club staff directly - Interact and get to know your fellow members - See all the latest club news, offers and events - Refer Friends to the club online - Recipes Library - Video Workout Library Apple Health App Integration Track your progress with our HealthKit app integration to import and measure your daily steps, distance or calories burnt. Also use HealthKit to import your data from a range of different wearable devices.

Screenshots

TK4 screens
Fa2fitness4 screens

Verdict

The call

The clearest difference is update cadence: TK at every 9 days against Fa2fitness's every 3 months. Fa2fitness's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

TK ships an update every 9 days, Fa2fitness every 3 months. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
TK versus Fa2fitness: the parameters behind the verdict, then further details
ParameterTKFa2fitness
PriceFreeFree
Rating4.8 (1.2K ratings) — better—
Positive reviews72.4% of reviews—
Number of ratings1.2K — better—
Update frequencyEvery 9 days — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size539 MB30 MB
Age rating12+4+
DeveloperTechniker Krankenkasse (TK)TeamUp Sports

Bugs and requests

TK

Reported bugs

5 issues
  • Login issues after updates
  • Incompatibility with older devices
  • Synchronization problems with Apple Health
  • Errors when submitting sick notes
  • Incomplete English translations

Requested features

5 requests
  • English language support for all features
  • Integration with more fitness tracking apps
  • Larger QR code display in wallet for easier scanning
  • Ability to view and manage bonus program details
  • Improved data synchronization and real-time updates

Fa2fitness

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

TK

No in-app purchases

None

Fa2fitness

No in-app purchases

Questions

Is TK free?
TK is free to download, with no in-app purchases.
Is Fa2fitness free?
Fa2fitness is free to download, with no in-app purchases.
Do TK or Fa2fitness have ads?
Neither TK nor Fa2fitness shows ads.
Which is updated more often, TK or Fa2fitness?
TK ships an update every 9 days, and Fa2fitness every 3 months. Most recently, TK was updated on October 15, 2026 and Fa2fitness on October 10, 2026.

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