Comparison

TK vs XTRAFIT

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

XTRAFIT

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
Read full description

Hier ist XTRA FEEL drin!
 Lade dir jetzt die neue XTRAFIT-App runter und bring dein Training aufs nächste Level! Von der Trainingsplanung, über die Verwaltung deiner Mitgliedschaft bis zur Studioauslastung: In der App findest du alles an einem Ort und ganz persönlich auf dich zugeschnitten. Du bist dabei? Dann App auf’s Handy! #TeamXTRAFIT APPLE HEALTHKIT Wir verwenden auch HealthKit, um den Benutzern zu ermöglichen, ihre Aktivitäts- und Trainingsdaten mit der App zu teilen. Diese Daten werden verwendet, um einen Anreiz für die Benutzer zu schaffen, aktiv zu bleiben.

Screenshots

TK4 screens
XTRAFIT4 screens

Verdict

The call

The clearest difference is update cadence: TK at every 9 days against XTRAFIT's every 2 months. TK also leads on ratings volume (1.2K vs 12) and review sentiment (72% vs 50%). XTRAFIT's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

TK holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: TK has 1.2K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 72% of TK's written reviews are positive against 50% of XTRAFIT's.

UpkeepUpdate frequency

TK ships an update every 9 days, XTRAFIT every 2 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 5 level
TK versus XTRAFIT: the parameters behind the verdict, then further details
ParameterTKXTRAFIT
PriceFreeFree
Rating4.8 (1.2K ratings) — better4.6 (12 ratings)
Positive reviews72.4% of reviews — better50.0% of reviews
Number of ratings1.2K — better12
Update frequencyEvery 9 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size539 MB100 MB
Age rating12+17+
DeveloperTechniker Krankenkasse (TK)XTRAFIT Service GmbH

Customer experience

TK

All ratings1,195 ratings
Positive96.3%
Neutral1.5%
Negative2.2%
Written reviews116 reviews
Positive72.4%
Neutral11.2%
Negative16.4%

XTRAFIT

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews20 reviews
Positive50.0%
Neutral45.0%
Negative5.0%

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

XTRAFIT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

TK

No in-app purchases

None

XTRAFIT

No in-app purchases

Questions

Is TK free?
TK is free to download, with no in-app purchases.
Is XTRAFIT free?
XTRAFIT is free to download, with no in-app purchases.
Which has better reviews, TK or XTRAFIT?
TK is rated higher. TK averages 4.8 out of 5 from 1.2K ratings, while XTRAFIT averages 4.6 from 12 ratings.
Do TK or XTRAFIT have ads?
Neither TK nor XTRAFIT shows ads.
Which is updated more often, TK or XTRAFIT?
TK ships an update every 9 days, and XTRAFIT every 2 months. Most recently, TK was updated on October 15, 2026 and XTRAFIT on October 14, 2026.

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