SiPhox Health is one of the more technically credible companies in direct-to-consumer blood testing. Headquartered in Burlington, MA, the company came out of Y Combinator's Summer 2020 batch and has raised roughly $31.9M to date, including a $27M Series A in July 2023 led by Intel Capital with Khosla Ventures. That capital paid for something genuinely novel: a proprietary silicon-photonics chip that runs assays in-house, rather than reselling Quest or Labcorp panels under a friendly skin. The kit ships to your door, the dashboard is sharp, Sai explains each result in plain language, and customer reviews hold steady at 4.4/5 across roughly 336 Trustpilot ratings. For US users who want at-home finger-stick draws and the convenience of one vendor handling kit, lab, results, and guidance, SiPhox is a strong pick.
The trade-off is scope. The kit, the assays, the dashboard, and Sai are all built in-house; pricing runs $125-$225 per recurring test cycle; the service is US-primary with Canada via a partner; and the experience is English-only and single-account. That focus is what makes it work for its core audience. It is a less natural fit if you already get bloodwork elsewhere, track results for a partner or kids, scan reports in other languages, or want one place that keeps a longer record across vendors.
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SiPhox makes new bloodwork at home; MyBloodTest makes sense of every report you already have — including the SiPhox one.
Where MyBloodTest fits.
MyBloodTest assumes you already have a way to get bloodwork — a primary-care doctor, an annual physical, an at-home kit like SiPhox, or a hospital report from outside the US. Our job is to make sense of those results across time, sources, family members, and languages. There is no testing logistics layer because we do not sell lab tests. The cost is real: you arrange and pay for your own draws. The benefit is that everything else — scanning reports in any language, five family profiles, wearable sync from Apple Health, Health Connect, Fitbit and Withings, share-with-doctor links, and named reference ranges drawn from Mayo, ARUP, Quest, Labcorp, WHO, CALIPER and more — is free.
How to use both together.
SiPhox plus MyBloodTest pairs cleanly. Order a kit when you want at-home finger-stick convenience and the biomarkers in their Ultimate 360 set. Lean on the SiPhox dashboard and Sai while you are an active member. Then export the resulting PDF and scan it into MyBloodTest so it sits alongside everything else — routine annual labs, panels from Quest or Labcorp, hospital reports, the wellness check from your employer. The company itself acknowledges this pattern by accepting uploads from Quest, LabCorp, Stanford and Mayo: no single vendor owns your full timeline.