Function Health and BloodSight overlap in analysis and tracking, but they sell different outcomes. Function arranges broad testing and adds clinician review. BloodSight starts with the PDF already in your hand and turns reports from different years and providers into one readable history.
Function Health vs BloodSight
The prices look far apart because one includes testing and clinical review while the other does not. Compare the jobs, not just the subscription fees.
| Compare | BloodSight | Function Health |
|---|---|---|
| Primary product | AI-assisted report analysis and longitudinal lab tracking. | A comprehensive annual testing membership with analysis and clinician review. |
| Published annual price | From $67/year; $8/month on the monthly Personal plan. | $365/year for the Function membership. |
| New blood testing included | No. Use reports ordered by your clinician or purchased elsewhere. | Yes. Function publishes 160+ lab tests annually, with a subset repeated during the year. |
| Outside results | PDF, JPG, or PNG reports from any provider; ten uploads per month on current plans. | Function says members can upload past lab results and results from their doctor. |
| Interpretation style | Plain-language explanations tied to the report, its printed ranges, and prior results. | Doctor-created insights, clinician notes, and a personalized protocol or action plan. |
| Clinician involvement | None. BloodSight is software, not a medical service. | Clinicians review results; Function says critical results trigger a provider call. |
| Household use | Separate plans for 1, 5, or 10 profiles. | Membership is centered on the individual member. |
| Best fit | Your testing is already handled and you need the reports understood, combined, and tracked. | You want a broad testing program arranged for you and reviewed as part of one purchase. |
Function Health information was checked on August 29, 2026 against its official pages. Features and prices can change. Verify the current offer at functionhealth.com. BloodSight is not affiliated with Function Health.
Important correction
Function’s current FAQ explicitly tells members to upload lab results from their doctor so they can track everything together. Its newer health-record tools also describe uploading past lab results and visit notes.
That removes a common but outdated reason to choose an alternative. The real decision is narrower: do you want to buy Function’s testing membership and its clinical layer, or do you want software dedicated to interpreting and organizing reports generated elsewhere?
What you are actually buying
Start with the point where your current workflow breaks.
Fit, not hype
A useful alternative page should also tell you when the competitor is the better purchase.
Direct answers to the questions that matter before paying for either product.
Function Health is primarily a testing membership: it arranges a broad set of lab tests, includes clinician review, and creates an action plan. BloodSight does not order tests or provide clinician review. It reads and organizes reports you already have from your doctor, Labcorp, Quest, MyChart, or another source.
Yes. Function Health now says members can upload past results and results from their doctor. Older comparisons that say Function only accepts its own testing are out of date. The practical difference is that Function still bundles analysis with a $365 annual testing membership, while BloodSight is a narrower report-analysis and tracking product.
Only if the part you need is report analysis and longitudinal organization. It does not replace Function’s lab ordering, large included panel, clinician review, critical-result workflow, or personalized action plan.
BloodSight starts at $67 per year when billed annually. Function Health publishes one membership at $365 per year. The products include different things, so the lower price is meaningful only if your blood work is already ordered and paid for elsewhere.
BloodSight has plans for one, five, or ten separate profiles, keeping each person’s reports and trends apart. Function Health memberships are purchased per eligible member.
No. BloodSight explains the report, shows the laboratory’s own reference intervals, connects patterns across the uploaded results, and tracks changes. It does not diagnose, prescribe, or replace a clinician.
Your next report
See exactly how BloodSight turns a lab PDF into an explanation and a timeline before you choose a plan.