How Best-In-Class Retention Propelled Flo to a $1B Valuation

Oct 16, 2025

Dmitry Gurski, cofounder and CEO of Flo, has led the women's health platform to a $1B+ valuation through innovative strategies. He discusses how offering free period tracking propelled user acquisition, driving organic growth through remarkable retention rates. Dmitry highlights Flo's approach of integrating life-stage features into a single app and the rigorous experimentation culture that enhances monetization. He also shares insights on balancing free value with monetization, the viral success of their Partner Mode, and the transformative role of AI in health apps.

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ANECDOTE

Mushroom Picking Shaped An Entrepreneurial Mindset

Dmitry recounts growing up picking mushrooms versus berries, preferring risky exploration over predictability.
He links that childhood choice to a lifelong appetite for entrepreneurial risk and change.

INSIGHT

Retention Is The Engine Of Organic Growth

Dmitry links retention directly to sustainable organic growth and App Store visibility.
He argues retention drives active audience, which fuels word of mouth and long-term organic traffic.

ADVICE

Experiment Relentlessly To Improve Conversion

Run high-velocity experiments: Flo keeps 200–300 active experiments and thousands historically.
Optimize onboarding and paywall: conversion-to-trial rose from ~2% to ~16–18% via experimentation.

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Dmitry Gurski is the cofounder and CEO of Flo, a leading women’s health platform widely known for its period tracking and broader reproductive health insights. Dmitry cofounded Flo in 2015 and has led the company through major milestones including 100M+ downloads, a $200M Series C funding round, and a $1B+ valuation. Prior to Flo, he founded several ventures in publishing and health tech, drawing on a background in pharmaceutical chemistry and executive education from Stanford.

Key Takeaways:

Flo made two contrarian bets early on that helped it to outcompete hundreds of other women’s health apps. First, it offered period tracking for free, which became a powerful driver of organic user acquisition, and second, it built features for different use cases like conception, pregnancy, and perimenopause into a single super app, resulting in category-leading long-term retention rates.
Strong retention rates allowed Flo to compound its active user growth over time. More active users has led to increased organic growth through word of mouth, which has in turn led to more active users, creating an efficient growth engine.
As Flo scaled, it also developed a rigorous experimentation culture. The app now runs thousands of experiments per year with 200 to 300 active experiments running at any give time. This has had a tremendous impact on its growth, and particularly on metrics like trial start and conversion rates that drive monetization.
As its revenue growth accelerated, Flo reinvested more and more money into product innovation, leading to even more rapid growth. Today, Flo is the #1 health app in the world, with 450 million installs, 80 million MAUs, and $300M in ARR.
After launching “Flo for Partners” in 2023, the company has already acquired >2M male users who are actively using Flo in Partner Mode, and the company believes it can very realistically grow to >10M partners over the next few years.

Dmitry Gurski:

Website: https://flo.health/
LinkedIn: https://www.linkedin.com/in/dmitrygurski/
X: https://x.com/flotracker

Phil Carter:

Website: https://www.philgcarter.com
Substack: https://philgcarter.substack.com
LinkedIn: https://www.linkedin.com/in/philgcarter
X: https://x.com/philgcarter

Podcast Production by Podders: https://podders.io