Comparison

TK vs WOF

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

WOF

Create custom workout plans, access professional exercise videos, and track your training progress. Engage with a community of athletes, stay updated on offers, and participate in live classes.

Highlights
  • Custom workout creation
  • Professional exercise videos
  • Training progress tracking
  • Live class participation
  • Training diary
  • Community connection
Features
Read full description

Get the most out of your training and improve your results with the WOF App! Exclusively and only for WOF customers. Create your own workouts and watch professional exercise videos and classes from the experts of WOF. Track your training progress at all times. * Create your own digital workout plans or be inspired by other WOF members. * Check out the current class schedule and get active with the class livestream. * Maintain your own training diary and record all your training sessions. * Learn more about your training progress with detailed statistics. * Improve your training with professional exercise videos and tips. * Connect with other athletes to discuss the latest trends. * Be inspired and motivated by the posts of your friends. * Stay up to date: Get the latest offers and news directly to your mobile.

Screenshots

TK4 screens
WOF4 screens

Verdict

The call

The clearest difference is review sentiment: WOF at 94% against TK's 72%. WOF also leads on device support (3 vs 1) and iOS requirement (15.5 vs 18.0). TK's advantage is monetization model (free vs ad-supported) and update cadence (every 2 weeks vs every 5 weeks). 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 2 weeks, WOF every 5 weeks. The most recent releases landed on September 28, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 5 level
TK versus WOF: the parameters behind the verdict, then further details
ParameterTKWOF
PriceFreeFree
Rating4.8 (1.2K ratings) — better—
Positive reviews72.4% of reviews93.8% of reviews — better
Number of ratings1.2K — better—
Update frequencyEvery 2 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.5 — better
Further details — not scored
Size538 MB82 MB
Age rating12+4+
DeveloperTechniker Krankenkasse (TK)Corpora Fitness GmbH& Co.KG

Customer experience

TK

All ratings1,187 ratings
Positive96.5%
Neutral1.5%
Negative2.0%
Written reviews116 reviews
Positive72.4%
Neutral11.2%
Negative16.4%

WOF

Written reviews16 reviews
Positive93.8%
Neutral0.0%
Negative6.3%

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

WOF

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

TK

No in-app purchases

None

WOF

No in-app purchases

Questions

Is TK free?
TK is free to download, with no in-app purchases.
Is WOF free?
WOF is free to download, with no in-app purchases.
Do TK or WOF have ads?
Neither TK nor WOF shows ads.
Which is updated more often, TK or WOF?
TK ships an update every 2 weeks, and WOF every 5 weeks. Most recently, TK was updated on September 28, 2026 and WOF on September 20, 2026.

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