Comparison

TK vs arzt

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

Head to head
About

TK

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
Read full description

Discover the TK-Doc app - keep your health under control! Medical questions, video consultations, lab results, or doctor's appointments - all quickly and in one app. The TK-Doc app offers you: • Video consultations with doctors: Take advantage of video consultations for adults and children. Whether it's a diagnosis, therapy recommendation, or issuing prescriptions, you can do everything from the comfort of your own home. • Medical advice around the clock: Ask your questions in live chat and share documents directly with the consulting doctors. Or speak to a specialist by phone. All this is available at any time, 365 days a year. • Appointment scheduling: Looking for a doctor's appointment? The TK appointment service and 116117 appointment scheduling can help! We enable you to make appointments with doctors and specialists in your area – for routine examinations as well as specialist practices. • Symptom checker: Get quick and easy information about your symptoms. Simply answer a few questions and the symptom checker will generate a list of possible diagnoses to help you better assess your symptoms. • Lab value checker: Check your lab values yourself! Find out what abnormal values mean, what potential illnesses they may indicate, and what measures you can take. • ICD search: Understand medical abbreviations in no time. Our ICD search explains the meaning of codes and shows the corresponding diagnoses. • Expert advice on dental prostheses: Get valuable advice from experienced dentists on your treatment and cost plan free of charge. Get answers to your questions and choose the best therapy for you. • TK doctor guide: Looking for the right doctor? Use our TK doctor guide to find the right experts quickly and easily. We are constantly developing the TK-Doc app. Share your ideas and suggestions at gesundheitsapps@tk.de – we look forward to your feedback! Thank you for your support! Requirements: • TK customer • iOS 18 or higher

About

arzt

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
Read full description

Unsere App ermöglicht es Ihnen, direkt einen Arzt Ihrer Wahl online zu sprechen, auch ohne Terminvereinbarung. Alle Kosten für Ihren Online-Arztbesuch werden von der Krankenkasse übernommen. Ob Nachuntersuchung, Besprechung von Beschwerden oder Fragen – ab sofort müssen Sie für einen Arzttermin nicht mehr das Haus verlassen. Das bietet Ihnen die arzt-direkt App: ◆ Intuitive Arztsuche ohne Registrierung – Starten Sie die Suche nach Ärzten/Fern-Ärzten ohne die Eingabe Ihrer persönlichen Daten. ◆ Schnelle Facharzt-Termine – Erhalten Sie einfach einen Termin beim Facharzt, ohne wochenlanges Warten. Unsere Online-Ärzte decken über 20 Fachrichtungen ab, wie Allgemeinmedizin, Augenheilkunde, Urologie, Gynäkologie, Dermatologie, Psychotherapie u.v.m. ◆ Ohne Anfahrtswege – Sprechen Sie mit Fachärzten aus ganz Deutschland, unabhängig von Ihrem Wohnort. ◆ Kostenlos für Patienten – Die Kosten für Arzttermine und Sprechstunden werden sowohl für gesetzlich als auch für privat versicherte Patienten von den Krankenkassen übernommen, egal ob Barmer, TK oder AOK. ◆ Krankschreibungen direkt online erhalten – Erhalten Sie Krankenscheine bzw. Arbeitsunfähigkeitsbescheinigungen, ohne Ihre Wohnung zu verlassen. ◆ Kinderleichter Dokumentenaustausch – Dateien einfach und sicher mit Ihrer Arztpraxis während einer aktiven Videosprechstunde teilen. ◆ Per Messenger den Arzt kontaktieren – Verbinden Sie sich direkt mit Ihrer Praxis, um vor und nach einer Videositzung Nachrichten und Dateien mit Ihrem Arzt auszutauschen. Erhalten Sie Ihre Diagnose, Befunde oder weitere Unterlagen direkt auf Ihr Handy. ◆ Hohe Datenschutzstandards – Ihre Daten werden niemals an Dritte weitergegeben. Die Online-Sprechstunden und der Versand von Dokumenten finden nur über eine verschlüsselte Verbindung statt. ◆ Leichtes Terminmanagement – Buchen Sie Vor-Ort-Termine oder Videosprechstunden über den Online-Terminkalender bei der Praxis Ihrer Wahl (ab iOS Version 13.4). Übrigens: Sie können die Termine auch ganz unkompliziert umbuchen oder stornieren. Die arzt-direkt App bietet eine intuitive Oberfläche. Alle relevanten Funktionen werden Ihnen bei Bedarf übersichtlich in der App erklärt.

Screenshots

TK4 screens
arzt4 screens

Verdict

The call

The clearest difference is ratings volume: TK at 21 against arzt's 1. TK also leads on rating (4.2 vs 4.0). 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.

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, 4.2 against 4.0. That said, the two scores are not equally well evidenced: TK has 21 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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 weeks. Both last shipped on September 24, 2026.

Scorecard4 real differences · 6 level
TK versus arzt: the parameters behind the verdict, then further details
ParameterTKarzt
PriceFreeFree
Rating4.2 (21 ratings) — better4.0 (1 ratings)
Positive reviews81.0% of reviews96.1% of reviews — better
Number of ratings21 — better1
Update frequencyEvery 6 weeksEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPod — better
Requires iOS18.015.6 — better
Further details — not scored
Size41 MB67 MB
Age rating12+17+
DeveloperTechniker Krankenkasse (TK)zollsoft GmbH

Customer experience

TK

All ratings21 ratings
Positive76.2%
Neutral4.8%
Negative19.0%
Written reviews58 reviews
Positive81.0%
Neutral3.4%
Negative15.5%

arzt

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews51 reviews
Positive96.1%
Neutral2.0%
Negative2.0%

In-app purchases

None

TK

No in-app purchases

None

arzt

No in-app purchases

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 4.2 out of 5 from 21 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 every 6 weeks, and arzt every 6 weeks. Most recently, TK was updated on September 24, 2026 and arzt on September 24, 2026.

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