A new startup focused on helping people live longer, healthier lives emerged from stealth on Tuesday.
The company, called Hundred Health, integrates users’ health data, including their medical history, lab results, personal wearable metrics and lifestyle inputs, into one app. Using this data, the platform gives users personalized action plans — which are designed to drive change in people’s daily behavior rather than just offer insights, said CEO Tyler Smith.
Hundred was born out of his personal wake-up call — when a biological age test showed he was far older than expected, prompting him to radically overhaul his health with elite, expensive care that he realized was inaccessible and hard to understand for most people.
Smith believes most people are “flying blind” with their health. Because medical data is so fragmented, people have to piece things together themselves or rely on generic AI advice from chatbots like OpenAI’s ChatGPT or Anthropic’s Claude, he noted.
Hundred’s goal is to unify all of that data into a clear, human-friendly picture of a person’s health.
“I believe in the future when everyone will have their phone in their hand, and they’ll have Hundred on it, and they will use it as their first line of defense before they even think of calling their doctor. And it will give them all of this really interesting insight into what’s happening in real time,” Smith declared.
An annual membership, priced at $499, gets users access to the Hundred app, where they can see all of their health information in one place, including their medical records, blood test results and data from wearable devices like smartwatches. Hundred uses this information to create a personalized plan that tells users what to eat, how to exercise and which supplements to take, along with clear explanations for why those recommendations matter, Smith explained.
The membership also includes follow-up testing and ongoing guidance meant to help people stick with changes and better understand what’s happening inside their bodies over time, he added.
For instance, the app might flag early signs of metabolic or hormonal imbalance, explain what those markers mean in plain language, and recommend specific changes — like adjusting protein intake, beginning strength training or switching sleep routines — to address them.
The app’s core value, Smith argued, is turning users’ data into a structured, evidence-based 100-day personalized health plan. He stressed that every recommendation is grounded in Hundred’s proprietary evidence repository, which is built on human trials, not anecdotes or animal studies.
The startup also deploys agents to gather new studies and evidence as research emerges. Smith noted that this commitment to staying on top of the latest medical knowledge helps set Hundred apart from other direct-to-consumer health apps.
Whether consumers are willing to trust a single app with such a broad view of their health remains to be seen, but Smith is betting that demand for clearer, more actionable guidance — not just more data — will continue to grow.
Photo: Mariia Zotova, Getty Images
