This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider for medical decisions.

TL;DR: K Health was a telehealth app that used AI to triage symptoms before connecting you to a doctor. It raised over $400 million in venture capital, reached a $900 million valuation, and then shut down its consumer app on December 31, 2025. All user accounts were deleted. Slothwise is an AI health assistant that connects to your medical records, wearables, and lab results to monitor your health continuously. It is independently built with no external funding and is now listed on the CMS Medicare App Library on Medicare.gov, one of only 13 apps selected.

What are K Health and Slothwise?

K Health was an AI-powered telehealth company founded in 2016 in New York City. Its consumer app paired an AI symptom checker (trained on over 400 million clinical notes from Maccabi Healthcare Services in Israel) with access to board-certified doctors who could diagnose conditions and write prescriptions. The consumer app was shut down on December 31, 2025, and the company pivoted entirely to a B2B model, providing AI-powered virtual care infrastructure to health systems like Northwell Health, Cedars-Sinai, Mayo Clinic, and Mass General Brigham.

Slothwise is an AI health assistant that connects to your medical records from over 60,000 hospitals and clinics, syncs with 300+ wearable devices, and learns what is normal for you. It surfaces insights when something needs attention, explains lab results, checks medications against FDA safety alerts, and prepares doctor visit summaries. It is accessible via both a native app and text message. Slothwise is listed on the CMS Medicare App Library on Medicare.gov, one of only 13 applications selected out of more than 350,000 health apps worldwide.

Think of K Health as a virtual urgent care visit: you described symptoms, the AI triaged you, and then you paid to see a doctor. Think of Slothwise as a health companion that knows your full medical picture and works with you every day, not just when something is wrong.

How do their features compare?

• AI health Q&A: Both offer AI-powered health conversations. K Health's AI was a front door to a paid doctor visit. Slothwise's AI answers health questions grounded in your actual medical records, lab results, and health history, with cited sources.

• Prescriptions and treatment: K Health connected you to licensed doctors who could prescribe medications ($49/month membership or $73 per single visit). Slothwise does not prescribe medications or provide diagnoses. It is a health information and monitoring tool, not a telehealth provider.

• Health records: K Health did not connect to your existing medical records from hospitals or clinics. Slothwise connects to over 60,000 hospitals, clinics, and insurance portals via Fasten Health, bringing your full medical history into one place.

• Wearable and device tracking: K Health did not integrate with wearables. Slothwise syncs with 300+ devices including Apple Health, Garmin, Oura, Whoop, and Fitbit, tracking trends in sleep, activity, heart rate, and more.

• Lab result interpretation: K Health could order labs through partner services. Slothwise interprets 200+ lab markers with age- and sex-stratified reference ranges, explains what your results mean, and tracks trends over time.

• Daily health tracking: K Health had no ongoing tracking features. Slothwise tracks food (by photo, barcode, or voice), medications, hydration, weight, mood, blood pressure, blood glucose, and menstrual cycles.

• Preventive care: K Health did not offer preventive care features. Slothwise generates a personalized preventive health checklist based on your age, sex, and medical history.

• Text messaging access: K Health required its app. Slothwise is accessible via text message with no app download required.

• Consumer availability: K Health's consumer app was shut down on December 31, 2025. Slothwise is available on iOS, Android, and via text message.

What did K Health do better?

K Health was a telehealth service with real doctors who could prescribe medications. That is a fundamentally different and valuable capability that Slothwise does not offer. If you needed a prescription for strep throat at 11 PM, K Health could help.

• Clinical AI dataset: K Health's AI was trained on over 400 million clinical notes from Maccabi Healthcare Services, one of the largest and longest-running health datasets in the world. This gave it strong diagnostic triage capabilities.

• Prescription access: Board-certified doctors could diagnose and prescribe through the app. For acute conditions, this was genuinely useful.

• Scale: K Health served over 6 million users and had 4.6 stars on the App Store before its shutdown. Major health systems (Northwell, Cedars-Sinai, Mayo Clinic) adopted its technology for their own virtual care platforms.

What does Slothwise do better?

Slothwise is built around continuity. Instead of waiting until you feel sick and paying for a doctor visit, Slothwise connects to your actual health data and watches for patterns, trends, and things that need attention before you notice them.

K Health's consumer app no longer exists. Slothwise is listed on Medicare.gov. That difference is not just about timing. It reflects a different approach to building a health product. K Health raised over $400 million from venture capital investors and ultimately pivoted away from consumers entirely. Slothwise was built independently, with no external funding, and every decision is made for the patient.

K Health's privacy policy disclosed that it may have sold and shared personal data (including identifiers and geolocation) to advertising and marketing partners. Slothwise does not run ads, does not sell user data, and does not share personal health information with third parties.

Slothwise has earned the DiMe Seal for quality and trust in digital health and is listed on the CMS Medicare App Library, one of only 13 apps selected out of 350,000+. K Health held neither credential.

Who should choose which?

• K Health is no longer available as a consumer app. If you were a K Health user, your account was deleted on December 31, 2025. The company now only provides technology to health systems. You may encounter K Health's AI through your hospital's virtual care platform (Northwell, Cedars-Sinai, Mayo Clinic, Mass General Brigham, or Hartford HealthCare), but you cannot sign up for K Health directly.

• Choose Slothwise if you want an AI health companion that connects to your medical records, monitors your health continuously, explains your lab results, tracks your daily habits, and is independently verified on Medicare.gov. You can start for free (50 messages, no credit card required) or subscribe to Slothwise Pro for $7.99/month.

This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider for medical decisions.