Ovul - Finding Product Market Fit in Femtech

Serhii Zatsarynin spent years at Siemens Healthineers running in-vitro diagnostics in Ukraine, in a world where every human touching the process counts as a potential error, and then came home to find the most important test in his life, the one he and his wife were running while trying for a baby, was a strip in a cup read by eye. That gap is where Ovul started.

In this in-person conversation with DeAndre Harakas and Grant Chapman, Serhii opens with a line that runs against the usual framing on this show, which is that hardware is not hard anymore. His case is that prototyping speed has changed what's possible, and he backs it with Ovul's own path, a working prototype in 30 days, pilot units with users about two months in, and roughly one iteration every two weeks after that. The product is a reusable digital saliva microscope that reads saliva ferning, a crystallization pattern tied to estrogen that was discovered in 1945 and has been sold for years as a manual device requiring a week or two of training to interpret. Serhii's move was to take the human out of that step with image recognition.

The conversation covers the parts of hardware that surprise first-time founders, including early units that broke every time a user opened them, why a device designed to have no interface ended up needing light indicators, the painful stretch between a few working prototypes and fifty consistent ones, the discovery that you cannot injection mold the shape you 3D printed, and why Ovul chose Wi-Fi over Bluetooth despite the cost, because a device left at home has to sync without the user thinking about it. Serhii also talks about raising capital with product already in market and finding investors unsettled rather than reassured by it.

The second half is about where users took the company, from ovulation detection into perimenopause and menopause transition, with around 360 serial production devices now in the field surfacing patterns the team didn't go looking for, and why Ovul deliberately collects no name, email, or phone number. He closes with a first distribution partner in Canada and the advice Grant calls the lesson of the episode, which is to go sell the thing even if it's ugly, because free feedback and paid feedback are not the same feedback.