Function HealthReviews of functionhealth.com

I signed up with Function in January 2025. The product from them was pretty good. Sure, its a little pricy and the doctor notes were underwhelming. However, the app is very user friendly, and they display your data in a way that makes it easy to find, read and understand. Booking your lab visits is convenient (all through the app) and very forgiving of last minute cancellations and re bookings. I was able to get some add on testing that proved to be beneficial to my every day life and I was most appreciative of the product they provided. I recommended it for others. My favor for them ended when 2025 did. I only intended on using their service for one year (as I cannot afford to use them every year) but I looked forward to going back eventually when the time was right for me. In mid January I realized I was charged $365 by Function on Dec 31st 2025 and quickly found out it was a "recurring charge". Now that may have been something I skimmed over when I was signing up but I quickly used their AI chat box to request a refund and it easily obliged and told me to wait a few business days for the refund. A few days come and go and I get a refund for $233.35, a partial refund. I message Mr. Ai chat bot that I was expecting a full refund. Since idk.. I'm not using their service this year but unfortunately Mr. Ai informed me that I needed to cancel my membership within 48 hours of being billed. So, I email a human about my problem, and the man was nice, professional and responded 1-2 times a day. That is where I was informed that I was a "member" and this is an annual charge...He claimed function sent an email 2 weeks prior, alerting me of the upcoming charge. I have checked my email several times and I cannot find that email. I was asking questions like "when did I become a member?" "How do I cancel my membership? Did I sign any contract? Will I currently be billed next year?" Why are you keeping $130?". I couldn't find any of this information on their app because it is not displayed. Disappointing to find this all out in the 11th hour to say the least. I was told their 48-hour cancellation policy is black and white so no refund for me, they just get to keep the remaining $130 for funzies because I caught the charge to my credit card 3 weeks later instead of two. My credit card company is handling the issue now, so the outcome remains to be seen. Overall, I find it really rich that a company that designed a great user-friendly convenient app was unable to clearly display any profile settings, membership status and financial records. Poor communication is one thing but to then not honor my request for a refund is disappointing when I didn't even purchase/receive anything from them I'm sure they make a lot of money off unassuming customers like myself. Good product, bad communication and bad customer service. Update: Function Health did end up giving me a full refund which gives them an extra star. Wish it happened earlier but I appreciate several members of their team reaching out and making the situation right. Thank you.

Latest update: they finally made it right. Their customer service is slow and difficult. I will give them another star if their product is worthwhile. They responded: added a star for effort and going to try to work with them. Original: Gave a membership to my wife as gift. We are unable to activate the membership for her. You can not call, only email to which you receive form letters. I am not eligible for a refund. The AI chat is useless as with most. Absolutely horrible customer service, appalling really. Super frustrating and so nice to think they have ruined a nice gift for which she was excited to use. Next stop, BBB and after that the State Attorney General. This poor service rivals that of the cable companies.

Splitting labs into two separate visits is unnecessarily inconvenient. It requires fasting twice and taking time off work twice — a major frustration that could easily be avoided by consolidating testing into a single visit. You’re also not told you’ll need two visits until after you pay. Function always requires two visits. Another pain point: downloading results. There’s no simple way to export a consolidated report. Each result has to be downloaded individually from Quest and then manually merged into a single PDF. That’s time-consuming and unreasonable for a service positioned as premium and physician-friendly. That said, the website functions okay and lab turnaround was fast (labs drawn Friday, results posted Monday in the Function portal). The biggest downside beyond logistics is support — if the AI can’t answer your question, there’s no clear path to a real person. Human support is essentially nonexistent. This was the reply from Function Health: "We’re sorry to hear this and have reached out via Trustpilot to gather the necessary contact details to locate your account. Please reply when you can — we’d like to help make things right." Note that the only way to 'reply' is to edit my review. I've just edited my review. I'm frustrated that I cannot download a copy of my labs. I've emailed Function Health requesting a copy. Now it's wait and see....

I would have appreciated a phone call follow-up to discuss the results. But I appreciated the emails and the supplement advice and I discovered I have a great deal of food allergies that I was unaware of. I also referred a few friends to your service. I think the concept is great.

Having an ability to provide additional health info and ask questions to a physician before the report is delivered would be helpful. We’ll see how the follow up labs go. I also would like to have access to my results through Quest or Apple so i can share them easier with my care teams.

After having a battery of blood tests done, I changed almost nothing in my life except adding one vitamin to my regimen. This was a waste of money for me and will not bother to have the 2nd round of blood testing.

The web interface is great. For spending nearly $1300, because I live in NY I have a lot of data but finding a doctor that will help create a health plan of action is difficult. I have been talking to 5 new doctors in my area that are taking new patients but so far none that have the vision of a comprehensive health and wellness plan. I was hopeful that function would be able to offer more for the cost paid.

Pros: This is a solid service if you’re willing to pay a premium for in-depth testing. I found the results informative and genuinely useful, and I’ve already made adjustments to my diet and lifestyle based on certain findings. While my doctor was only moderately impressed, we did take action by ordering new bloodwork through her office to confirm and compare results. Overall, this service works well as a baseline snapshot of your health. Cons: First, test results cannot be transferred directly from the app or website to a healthcare provider’s system. The only option is to export the data as a PDF, which is cumbersome and impractical. My doctor simply does not have the time to comb through pages of unlinked data that can’t be easily compared to her own records—and frankly, I agree. Second, you cannot cancel auto-renewal directly through the app or website. When I tried, I was routed to a chatbot called “Function Concierge.” I clearly stated that I wanted to keep my current subscription but cancel auto-renewal. The response only explained how to cancel entirely. Since I am halfway through my year, canceling outright would mean losing the follow-up testing included in the original price. I tried rephrasing the request multiple ways and even texted the provided number, but received the same unhelpful response each time. As a result, I now have to mark my calendar to remember to cancel at the exact end of the subscription period. This feels like a deliberately frustrating and unnecessary process. While I had planned to turn off auto-renewal—not rule out renewing in the future—the difficulty alone has convinced me otherwise. I won’t be spending hundreds of dollars again just to get the runaround. Buyer beware.