Compare · Outliyr vs Function Health
Outliyr vs Function Health.
Function gives you 160+ labs twice a year, a clinician's notes, an optional full-body MRI, and now a connector that hands the whole file to ChatGPT, Claude, or Perplexity. Outliyr gives you the experiment engine for the 363 days a year you're not at the lab. Both can be the right answer; they answer different questions.
The difference in one line
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Entry price
- Outliyr
- Free, Pro $15/mo founder
- Function
- $365/yr
01Quick answer
If you want comprehensive lab panels twice a year, get Function. If you want to test what actually moves those labs, use Outliyr.
Function Health is $365/year for 160+ lab tests, clinician-reviewed results, and personalized protocols, with a $499 full-body MRI available on top. In August 2026 they shipped a connector that pipes your results, longitudinal history, and clinician notes straight into ChatGPT, Claude, and Perplexity, which tells you how commoditized the "explain my labs" layer has become. Outliyr does not run labs at all. Outliyr ingests your Function (or any other) lab PDF, joins it to your wearable, supplement, and protocol data, and runs structured experiments to find out which interventions are actually moving your biomarkers between panels.
02Where Function Health wins
Function is the simplest path to a comprehensive annual lab panel.
Function's strength is the panel itself. 160+ tests in a single membership, twice yearly, without negotiating with insurance, without separate orders for hormone, lipid, metabolic, vitamin, and inflammation panels. The clinician review on top means you don't need to find a functional medicine doctor to interpret results, and the protocol notes are a useful starting point. Since the Ezra acquisition they also sell a 22-minute full-body MRI for $499, which used to cost several times that. For someone going from "I have not had real labs in years" to "I have a comprehensive baseline," Function is the fastest route in the US.
Outliyr does not replace this. We do not run labs. We do not employ clinicians. If you have not had a recent comprehensive lab panel, get one. Function is one of the cleanest ways to do that today.
03Where Outliyr is structurally different
A panel twice a year doesn’t tell you what to change tomorrow.
The gap Function leaves open is daily decision-making, and handing the file to a chat model does not close it. Their model is two snapshots a year plus generalized protocol guidance. Between those snapshots you are still wondering: is the ashwagandha working? Is fasted training tanking my recovery? Is that new peptide stack actually moving my fasting glucose? A model reading your January panel cannot answer any of those, because the answer does not exist in the panel. It only exists in what happens to you over the next six weeks.
Outliyr fills the days in between with three things Function does not have:
- 01 Structured N-of-1 experiments.
Define a baseline, an intervention, a target metric, and a watch on side effects. Run for 14, 30, 60 days. Get an actual answer.
- 02 Daily wearable + journal context.
Sleep, HRV, recovery, mood, training, food: all joined to whatever stack changes you're testing.
- 03 Personal Scientist that watches the joined dataset.
Surfaces signal automatically, so you don't have to be your own statistician.
04Side-by-side
Scroll the table sideways →
| Feature | Outliyr | Function Health |
|---|---|---|
| Primary role | Always-on experiment engine | Twice-yearly comprehensive lab panel |
| Pricing entry | Free, Pro $15/mo founder | $365/yr |
| Lab tests run | None (ingests your labs) | 160+ tests, twice yearly |
| Imaging | None | Full-body MRI, $499 add-on |
| Clinician review | No (Personal Scientist AI) | Yes, included |
| AI | Personal Scientist on your joined data; MCP server on Max | Connector that pipes results into ChatGPT, Claude, Perplexity |
| N-of-1 experiments | Yes, with a graded verdict | None published |
| Daily wearable + protocol context | Yes (every wearable) | No wearable sync published |
| Stack tracking | First-class | No |
05How they work together
Use Function for labs. Use Outliyr to move them.
The clean stack is: Function Health for comprehensive labs twice a year, Outliyr for the experiments and daily decisions in between. Upload your Function PDF to Outliyr and every biomarker becomes a target metric you can run experiments against. When the next Function panel arrives, you'll know which interventions actually moved which markers because you ran the experiment.
If you are choosing only one and you have never had a comprehensive lab panel, start with Function. If you have current labs and want to know which interventions are actually working, start with Outliyr.
Since launch, Outliyr also reads raw DNA uploads (AncestryDNA, 23andMe) into interpreted traits and suggested experiments, a layer an annual panel never touches.
Start free, or lock founder pricing while seats remain.
The Free tier never expires and runs unlimited experiments. Founder pricing holds for as long as the membership stays active.