Function HealthFunction gives you access to 160+ yearly lab tests—5x more than a typical annual physical—covering everything from heart, hormones, thyroid, liver, kidneys, heavy metals, nutrients, inflammation, and more, plus actionable insights from top doctors. All results are stored in one place, making it easy to spot trends, track progress, and take action.
Function Health (functionhealth.com) has 3,039 customer reviews on Five Star Index, with an average rating of 4.4 out of 5.
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Mona
More customer service, more opportunities to talk actually to any professional service.
Response from Function HealthMay 12, 2026
Thank you for your feedback. We understand the importance of having more direct support and opportunities to speak with someone. Our team has sent you an email to assist further and we’ll be happy to continue helping there.
EL M.
Hard to get hold of the support. I have been trying to get my test once again, no real support in there to help until it got passed, they attempted to a chanrgeback to get there $36 , then no communication after that even i was able to see it happen in my bank account. and until now, the retest is not something they offered yet to fix their Tech stack and non communication on deadline !
Response from Function HealthApr 29, 2026
We hear you, EL Mehdi. To look into this further, please supply the additional contact details we have requested through the platform. Thanks!
Al L.
Worst customer service I have ever experienced. Tried twice to get a Grail cancer test, but the lab they used did not the right collection tubes. To make matters worse, Function would not send them to me, which would have solved the problem. I’m not using them again.
Response from Function HealthApr 15, 2026
Thanks for letting us know. We’re sorry your experience wasn’t what you expected. We’ve reached out to gather a few more details so we can look into this further. Once we gather the necessary details, we will update our reply here.
Seraphs
Just paid the enrollment fee and trying to book the appt has been a nightmare. You cannot change your state/location even if there are no labs available. I have been trying to find someone/anyone to respond to my emails so I can book asap at another location. The chat function is not working on my account - it just says "couldnt send". Phone number is voicemail only. I just want my money back at this point.
Response from Function HealthApr 10, 2026
We hear you, Seraphs. To look into this further, please supply the additional contact details we have requested through the platform. Thank you.
Jon
Not worth it. It's a very expensive blood test that most insurances cover with a $20 co-pay. All of the results and protocols created post blood work are AI generated. A doctor never contacts you or discusses your results in a personalized manner. It's all generic responses, they say it's personal but it's AI.
Response from Function HealthApr 12, 2026
We hear you, Jon, and your feedback. Our goal is to make Function as valuable and personalized as possible, and your perspective helps us get there. We'd love the chance to learn more—send us an email at [email protected] and our team will be happy to assist.
Sierra
The lady just gas lit me the entire time and never contributed an actual solution. It’s still an on going issue so as much money as I pay I feel a little more entitled to better customer service. Outside of never being able to utilize the app because of this issue, I think this is a wonderful company doing a great thing for people who have a firm grasp on their own health and don’t really need a primary care physician at this point in their life.
Response from Function HealthApr 9, 2026
We’re sorry to hear this—this isn’t the experience we aim to provide. Our team has reached out to you directly via email to support you further and look into this. We appreciate you bringing this to our attention and hope to connect soon.
Caroline
If I could give zero I would. HORRIBLE experience. They make it impossible to talk to anybody and refuse to give refunds. I do NOT recommend.
Response from Function HealthApr 6, 2026
Hi Caroline, we’re sorry to hear this—this isn’t the experience we aim to provide. Our team has reached out via email to support you further and assist with a refund. We appreciate you bringing this to our attention and hope to resolve it soon.
Daniela
Poor communication and pricing is not transparent.
Response from Function HealthApr 6, 2026
Hi Daniela, thank you taking the time to share about your experience. If you'd like to share more—reach out to us at [email protected]. We’re committed to making Function more impactful and personalized for members like you.
