Updated October 15, 2026. By FitScript Editorial.
Function Health and Everlywell both turn blood testing into a health plan, but they are built differently. Function Health sells a yearly membership with twice-yearly testing included. Everlywell sells single at-home test kits and a yearly Everlywell 360 membership with a lab test at Quest and a clinician-reviewed Care Plan. FitScript publishes this page and is shown alongside them as a third option built around reading the labs you already have. Every fact below is linked to where it came from.
FitScript publishes this comparison and is one of the services compared. Competitor facts come from each company's own website as of October 15, 2026. Prices and features change, so check their current terms before you decide.
| Topic | Function Health | Everlywell | FitScript |
|---|---|---|---|
| Price | $365 per year, charged annually. Function notes that membership renews at the then-current price. [6] | Everlywell 360 is $399 billed annually. Single at-home kits are priced separately, for example the Men's Health Test at $249. [7] | Protocol $20 per month including a 7-day trial, cancel anytime. Peak $99 per month or $999 per year, adding provider access and two group coaching calls a week. [1] |
| Lab testing | 160+ lab tests a year, with 100+ at the annual visit and 60+ at a mid-year retest. [8] | 83 biomarkers across six categories in the 360 test, once a year. The Men's Health Test measures 4 hormones from saliva. [7] | Panels priced one at a time, from $49 to $499. Up to 149 biomarkers across 11 systems, read against optimal ranges. [2] |
| Where you test | 2,000+ Quest labs in 48 states, or an at-home draw with a licensed specialist. [8] | 360 samples are collected at one of 2,000+ Quest locations. At-home kits use saliva, urine or dried blood spot samples. [7] | A digital requisition valid at 3,000+ Quest and Labcorp locations, or at-home phlebotomy in select areas. [5] |
| Results timing | First results typically arrive within 48 hours of testing. [8] | Most 360 results within 9 days after lab work, with a Care Plan within 24 hours of results. [9] | 3 to 5 business days for FitScript Essential, up to 7 to 10 for Heavy Metals. [5] |
| Clinician and AI support | Clinicians review every result. Members can connect Function to AI partners such as ChatGPT, Claude and Perplexity. [8] | A clinician-reviewed Care Plan, a WellScore and a biological age in the MyEverly Dashboard. [9] | Atlas, the AI that reads your labs, on every plan. Peak adds provider access and two group coaching calls a week. [1] |
| Labs from elsewhere | Upload results from your doctor to track them in one place. [8] | Check Everlywell's own site for its current terms. [7] | Upload PDFs or photos of lab reports from Quest, Labcorp, other testing services or your doctor. [3] |
| HSA and FSA | Listed as HSA/FSA eligible. [6] | Everlywell 360 is listed as FSA/HSA eligible, and is paid directly rather than through insurance. [7] | Each lab panel page lists the panel as HSA/FSA eligible. [5] |
Function lists one membership at $365 per year, charged annually, which it also expresses as $1 a day. Its pricing page states that the membership renews at the then-current price, and its FAQ notes that testing in New York and New Jersey can cost more because of state regulations. The membership covers 160+ lab tests a year, clinician review of every result, a personalised protocol and member pricing on MRI and CT scans. Function is insurance-free and provides an itemised receipt for HSA or FSA reimbursement.
On flexibility, Function states that members can cancel and rejoin at any time.
Everlywell lists Everlywell 360 at $399 billed annually. Its 360 page describes one 83-biomarker lab test every year, a biological age, a clinician-reviewed Care Plan and FSA/HSA eligibility. Its help center states that the membership renews on the anniversary of signup, and that additional labs or prescriptions ordered by the clinician are not included in the membership fee. A 360 + Consult option adds a one-to-one meeting with a licensed provider.
Single tests are priced on their own. The at-home Men's Health Test, for example, is listed at $249 and measures four hormones from a saliva sample.
Function splits its 160+ yearly tests into two visits. The Annual Test covers 100+ biomarkers, and the Mid-Year Test covers 60+ biomarkers to track change, which Function says must be used before the annual renewal. Its published menu runs across heart, thyroid, hormones, metabolic health, liver, kidneys, nutrients, environmental toxins and autoimmunity, and includes markers such as ApoB, lipoprotein(a), LDL particle number, omega-3 levels and heavy metals such as mercury.
Function also lists practical details. Members fast for 8 hours and avoid seafood for 48 hours before heavy metal tests. Some members need two visits, for example people with an active menstrual cycle, so hormones are drawn at the right time, and members in Arizona because of state processing rules. Function is open to adults 18 and over who are not currently pregnant.
Everlywell 360 tests 83 biomarkers across six categories: nutritional, hormone, heart and metabolic, inflammation and autoimmunity, liver, kidney and bladder, and immune and blood cell health. Its help center explains that 360 tests are processed in CLIA-certified and CAP-accredited labs through Quest Diagnostics, with blood and urine collected by licensed technicians, and its 360 page highlights a urinalysis panel as part of the test.
Its at-home kits work differently. The Men's Health Test measures total testosterone, DHEA, cortisol and estradiol from saliva, and Everlywell's science page lists dried blood spot, saliva and urine as its at-home collection methods, processed in CLIA-certified labs.
Sources [8] [11] [7] [9] [10] [12]
For Everlywell 360, samples are collected at one of 2,000+ Quest locations. For single kits, the sample is taken at home and mailed to the lab, so there is no lab visit at all, which Everlywell's Men's Health Test page presents as one of its advantages.
Function states that the first batch of results typically starts arriving within 48 hours of testing. Each result comes with explanations written by doctors, action items and a clinician's full summary, and Function says a healthcare provider will call right away if a result is critical. Members can download results as a PDF to share with their own doctor.
Everlywell's help center states that most 360 customers get lab results within nine days after their lab work, with a Care Plan within 24 hours of results. Results, a WellScore and the Care Plan are delivered in the MyEverly Dashboard, and its 360 page adds a biological age based on nine biomarkers.
Function states that clinicians review every result and flag issues. For AI, members can stay in Function's Private AI Chat or securely connect their results and clinician notes to vetted partners including ChatGPT, Claude and Perplexity. Questions about membership or results go through member chat, and Function describes its service as deeper insight to use alongside your existing care.
Everlywell describes its results and Care Plan as clinician-reviewed, and its science page states that a clinician reviews the lab requisition and, where eligible, the results. Its help center lists its clinicians as MDs, DOs, NPs and genetic counsellors, with licensure in all 50 states. On treatment, the same 360 help page gives two descriptions: it states that diagnosis and treatment are not currently available through Everlywell 360, and it also describes clinicians in a 360 consult prescribing when appropriate, with examples such as levothyroxine, statins and metformin. Check its current terms for what your plan includes.
Function lets members connect supported apps under Connected Apps to sync their health data, and invites members to upload results from their own doctor so everything is tracked in one place over time.
The Everlywell pages we read describe testing through its own at-home kits and its 360 lab test at Quest, with results delivered in the MyEverly Dashboard.
Function offers a large amount of testing for one published yearly price, with two scheduled draws so members can see change over a year. Its site lists 2,000+ Quest labs in 48 states, an at-home draw option, first results typically within 48 hours and clinician review of every result. Members who want imaging can add an annual MRI.
For people who want a broad, recurring panel managed for them and like having clinicians review the results, that structure is easy to follow.
Everlywell makes testing easy to start. Many of its tests need no lab visit at all, and a single kit answers a single question without a membership. Its 360 test is broad for one draw, covering 83 biomarkers with a urinalysis panel, and comes back with a clinician-reviewed Care Plan rather than numbers alone.
It is also explicit about the edges of its service: which states 360 serves, what the membership fee excludes, and how cancellation works for each kind of order.
Function is a good fit for someone who wants a broad panel twice a year, with clinician review of every result, the option of an at-home draw and member access to MRI and CT. Its scheduled mid-year retest suits people who want to see change within a year without planning it themselves.
Everlywell is a good fit for someone who wants to answer a specific question with an at-home kit, or who wants one broad lab test a year at Quest with a clinician-reviewed plan and no ongoing app subscription.
FitScript publishes this page and is shown in the table as a third option. It is built around reading the labs you already have rather than around one fixed testing bundle. Protocol is $20 per month including a 7-day trial and covers Atlas, its AI, the Health Score and personalised recommendations on uploaded labs. Lab panels are sold one body system at a time, from $49 for a single test to $499 for FitScript Complete, and Peak adds provider access and two group coaching calls a week.
Its upload page accepts PDF reports from Quest, Labcorp, other testing services and hospital systems, as well as phone photos of paper printouts, and states that Atlas has a read in under a minute. So results from either service compared here can be uploaded and read against optimal ranges.
See Upload your labs, FitScript pricing, FitScript Essential
Start with the tests you actually want. A large biomarker count is useful when it covers the systems you care about, such as thyroid, hormones, heart, liver and kidney health. Read each provider's published list and look for the specific markers you have been told to watch, for example ApoB, fasting insulin or free T3, rather than comparing totals alone.
Next, think about how often you will retest. Seeing a number move after three or six months is often more useful than a single snapshot, so include the cost of a second draw in any yearly total. Check where you can be drawn, how long results take and whether a clinician reviews anything outside the standard range.
Finally, look at what happens after the results arrive. Some people want a clear written plan, some want to ask questions about their own numbers, and some want a licensed provider involved. Membership terms, renewal pricing and HSA or FSA eligibility are worth reading closely too, since they change over time.
Choose based on what you need most. Function Health sells a yearly membership with twice-yearly testing included. Everlywell sells single at-home test kits and a yearly Everlywell 360 membership with a lab test at Quest and a clinician-reviewed Care Plan. Read each company's current terms, since prices and features change.
Whatever you choose, a licensed clinician is the right person to interpret results that fall outside the standard range and to decide on any treatment.
As listed on Function Health's own site on the date shown on this page. $365 per year, charged annually. Function notes that membership renews at the then-current price. Check Function Health's current terms, since prices and features change.
As listed on Function Health's own site on the date shown on this page. First results typically arrive within 48 hours of testing. Check Function Health's current terms, since prices and features change.
As listed on Function Health's own site on the date shown on this page. 2,000+ Quest labs in 48 states, or an at-home draw with a licensed specialist. Check Function Health's current terms, since prices and features change.
As listed on Everlywell's own site on the date shown on this page. Everlywell 360 is $399 billed annually. Single at-home kits are priced separately, for example the Men's Health Test at $249. Check Everlywell's current terms, since prices and features change.
As listed on Everlywell's own site on the date shown on this page. Most 360 results within 9 days after lab work, with a Care Plan within 24 hours of results. Check Everlywell's current terms, since prices and features change.
As listed on Everlywell's own site on the date shown on this page. 360 samples are collected at one of 2,000+ Quest locations. At-home kits use saliva, urine or dried blood spot samples. Check Everlywell's current terms, since prices and features change.
No. Everlywell 360 samples are collected at one of 2,000+ Quest locations by licensed technicians. Everlywell's single kits, such as the Men's Health Test, are collected at home.
No. Everlywell's help center states that 360 is not offered in Arizona, Alaska, Hawaii, New Jersey, New York or Rhode Island.
Atlas is FitScript's AI. It reads every marker against optimal ranges as well as the standard range, builds a daily protocol and answers follow-up questions about your own results. The FitScore is one score built from your results, tracked over time.
Many people retest a panel after about three months to see whether changes in sleep, training or diet have moved the numbers, then every six to twelve months once results are steady. A clinician can suggest a schedule based on your own results.
No. FitScript publishes it and is one of the services compared. Every competitor fact links to that company's own site and shows the date we read it, so you can check anything that may have changed.
Function Health and Everlywell are trademarks of their respective owners. FitScript is not affiliated with or endorsed by Function Health and Everlywell.