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★★★★★Larry Hirschv1.46.04 Oct 2026

Very insightful for learning about how all systems in your body are functioning. With out this testing I would have never known about numerous areas I need to have further evaluated. Function Health is a must for anyone interested discovering and preserving your optimum health.

Developer reply

Hi Larry, thank you for taking the time to write this. We're glad your results gave you a clearer view of what to look into next, and it means a lot that you'd recommend Function Health to others.

★★★★★G Rv1.43.019 Sept 2026

pay for your own testing and then upload that information into an llm of your choosing. I did this and received infinitely better output. preferably one that you of course pay $20 a month or so for. this app is just a wrapper that goes around GPT without any significant prompting. you will basically still need to do all the work and research to figure out what you should be doing to improve your health based on your biomarkers.

Developer reply

Thank you for sharing your feedback. We’re sorry the experience didn’t meet your expectations, and we’ve passed your thoughts along to our team. If there’s anything specific we can help with, please reach out to us at hello@functionhealth.com.

★★★★★Sarah Burgosv1.42.012 Sept 2026

Function Health literally saved my life. First round of bloodwork showed several out of range biomarkers for my heart. At the same time I was in and out of the ER for what felt like a heart attack. Because of Function Health, the ER, after first dismissing my symptoms as indigestion, referred me to Cardiology. There I was diagnosed with Coronary Artery Spasms and Microvascular Dysfunction. If I wasn't diagnosed in time, based on the severity of my spasms, I would've had an actual heart attack.

Developer reply

Thank you so much for sharing something this personal with us. We're deeply grateful you got the care you needed, and stories like yours are exactly why we do this work. If you'd ever like to share more, we'd love to hear it at hello@functionhealth.com. Wishing you continued health.

★★★★★Christina Baileyv1.41.07 Sept 2026

This app and the testing is helping me get my health back on track.

Developer reply

Thank you so much for sharing something this personal with us. We're deeply grateful you got the care you needed, and stories like yours are exactly why we do this work.

★★★★★Olivia Lv1.41.06 Sept 2026

This app has helped me more in 2 weeks than the last 15 years of doctor apps combined.

Developer reply

Thank you for sharing this. We've passed your feedback along to our team.

★★★★★Melissa Settlesv1.40.02 Sept 2026

I'm so glad I decided to take this test. The app is easy to use, the information is easy to understand, and I love all the nutritional suggestions. I have more confidence that I'm heading in the right direction with my health. Function Health takes the guesswork out of the areas that I need to focus on. Very impressive and highly recommend!

3 people found this helpful

Developer reply

Thank you for the kind words! We're so glad Function is giving you clarity and confidence around your health decisions. We've passed your feedback along to our team.

★★★★★Rob Lauberv1.40.028 Aug 2026

Keeps continuously sending me back to the main page while trying to provide data. Off to a really bad experience so far with this app.

Developer reply

Hi Rob, sorry to hear you're experiencing issues with the app. We appreciate your feedback as we continue to improve. Please reach out to us at hello@functionhealth.com and our team would be happy to assist you further.

★★★★★Amanda Mihalikv1.39.026 Aug 2026

Deep dive, do it, be the best you can be!

Developer reply

Thank you for your enthusiastic review. We truly appreciate your support.

★★★★★Mae Gerhartv1.39.019 Aug 2026

Shows how little changes can improve your health. I've had a lot of changes over the last 10 yrs and my GP with the annual visit hasn't been beneficial. Function's recommendations give you small changes with cumulative effect vs drama. It shows you what's going right, what could be better, and what to watch. Changes to make, and sets you up in 6 month updates to see what's changed. And I can chat with the AI about my results. Love it. Should be the standard baseline for healthcare.

1 people found this helpful

Developer reply

Thanks so much for the thoughtful feedback! We're glad Function's approach, small, sustainable changes over time, is making a real difference for you. We've passed your kind words along to our team, and we're so glad you're finding value in tracking your progress every 6 months.

★★★★★Matt Kritz, PhDv1.38.016 Aug 2026

Well designed and useful

Developer reply

Thanks for the kind words! We're glad you're finding Function easy to use and helpful.

Function Health

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