The New York startup, part of Y Combinator's Fall 2025 batch, pulls your watch, ring, labs and medical records into a single AI coach. The founders sold their last company to Spotify. This time the product is you.
Dave Zohrob had already done the thing most founders spend a decade chasing. His company, Chartable, sold to Spotify in 2022. And then, at a routine doctor's visit as a new parent, he got results he didn't expect. The scare stuck. What followed was not a health transformation montage but something more familiar to anyone who has tried to get in shape while running a company: six months of juggling five different apps, cross-referencing a sleep score here against a lifting log there, and slowly realizing that staying healthy had quietly become a second full-time job.
Nori is the company he built out of that frustration. Founded in 2025 with his long-time collaborator Harish Agarwal, it is an AI health coach that connects the data you are already generating - from your Apple Watch, your Oura ring, your Whoop band, your Peloton, your nutrition app, your medical records, your blood tests - and turns the pile into a single, plain-language daily plan. It is part of Y Combinator's Fall 2025 batch, the cohort YC labels F25, with Garry Tan listed as its primary partner.
The modern health-conscious person is drowning in metrics. A watch counts steps and heart rate. A ring grades sleep. A separate band scores recovery. A lab panel spits out a PDF twice a year. A nutrition app tracks the sandwich. None of these things talk to each other, and none of them know the rest of your life - that you slept badly because a toddler was up, that the stress spike was a board meeting, that you skipped the gym because you were traveling. The result is a lot of numbers and very little guidance.
Zohrob's diagnosis is that the raw material for good advice already exists; it is just scattered and unread. As he has put it, we are under-using the data our devices already collect, and connecting it to increasingly capable AI could close the loop between measuring and improving.
Mechanically, Nori is an aggregator with an opinion. It pulls in the feeds, looks for patterns across them, and then - this is the part the founders emphasize - tells you what to actually do rather than handing you one more dashboard to interpret. The infographic below is roughly the shape of the thing: many inputs, one place to ask questions.
The distinction Zohrob keeps drawing is memory. A generic chatbot, or a generic doctor's-office pamphlet, starts every interaction from zero and treats you as an average of everyone. Nori is designed to remember - to build a continuous picture of one specific body over weeks and months, including the messy interactions between sleep, stress, exercise and life.
The most convincing pitch for a product like this is usually the founder's own body. Zohrob's self-experiments are the running examples: adding magnesium, he says, raised his REM sleep by about 25%; cutting his training from six or seven sessions a week down to something with actual rest days made him stronger, not weaker. Neither insight was obvious from any single app. They only surfaced once the data sat in one place and something was looking across all of it.
Health advice is generic because it doesn't know you. Nori's whole bet is that an AI which actually remembers your data can give advice that isn't.
Nori is not a first rodeo. Zohrob and Agarwal met at AngelList and have been building together for more than ten years. They founded the podcast-analytics company Chartable, which Spotify acquired in 2022, after which Zohrob spent time in product leadership at Spotify. Agarwal's resume goes back further into YC lore - he co-founded Octopart, an electronics-parts search engine, in the W07 batch; it was acquired in 2015. The legal entity behind Nori is Unison Labs Inc.
That continuity matters more than it sounds. Health is a category littered with apps that launch, chart your numbers, and quietly get deleted. A team that has shipped, sold and stayed together for a decade is making a longer bet - one they have framed with an almost absurdly large goal.
Nori is landing in the middle of a crowded, fast-moving corner of consumer health. On one side are the device makers - Oura, Whoop, Apple - each building their own coaching layer on top of their own data, but only their own data. On the other are the lab and longevity services like Function Health and Superpower, which go deep on bloodwork but don't live on your wrist. And everywhere in between are people pasting numbers into a generic AI chatbot and hoping for the best.
Nori's wedge is the connective tissue: the layer that reads across all of it and remembers. Its stated focus so far is narrow on purpose - iOS and Apple Watch users chasing weight loss, more energy, or faster recovery. The business is a consumer subscription; the founders have not publicly detailed pricing. What they have shown is early traction - a version 2.0 that pushed active usage into the thousands with daily active users growing roughly 65% month-over-month.
There is also a very human origin here that keeps the mission from feeling like a spreadsheet. Before startups, Zohrob sang in a dance-punk band that played San Francisco raves - a detail he cheerfully calls "a very fun era of my life." The company he is building now is less about optimizing to a number and more, in his telling, about being present. He wanted to stop ignoring this part of his life so he could be around for his kids. That is the quiet engine under the billion-healthy-years talk.
If you already wear a watch and a ring, own a Peloton, and get bloodwork once a year, Nori's promise is simple: stop being the integration layer yourself. Connect the accounts, let it read across them, and get a plan instead of a pile of charts. Whether an AI coach can genuinely change behavior over the long run is the open question every app in this space is racing to answer. Nori's answer is that memory is the missing ingredient - and it has a decade-long team and a growing user base betting the same way.