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PERIOD.
The cycle app that refuses to sell your data.
PERIOD. is the EU-built cycle tracking app. An AI assistant trained on women's health — PMS, PCOS, PMDD, contraception, cycle nutrition. No ads. No data resale. Free forever for the basics. Plus (€3.49/mo) unlocks unlimited AI. Bootstrapped in Amsterdam. Servers in Ireland, no US subprocessors for user data. #1 period tracker in the Netherlands with 30,000 active users and ~150 organic signups a day. The privacy-first alternative to Flo and Clue.
Top comment
Hi Product Hunters! 👋 I'm Lisa, co-founder of PERIOD. with my brother Diederick. We built this because cycle tracking shouldn't mean handing over your most intimate health data to ad networks. PERIOD. is what we wished existed when we saw Flo settle with the FTC over sharing user data with Facebook. EU-built from Amsterdam, servers in Ireland, no US subprocessors, no data resale — ever. The Free tier stays free forever for the basics. Plus (€3.49/mo) unlocks unlimited AI conversations on PMS, PCOS, PMDD, hormonal contraception, and women's health more broadly. We're already #1 period tracker in the Netherlands with 27,000 active users. Now we'd love your help reaching women in markets where the bar for privacy in femtech is still embarrassingly low. Happy to answer anything about: • Building privacy-first AI in healthcare (EU AI Act, GDPR, no training on user data) • Bootstrapping a femtech with two founders (no VC) • The Flo lawsuit and what we learned designing the alternative • Why most cycle apps are weirdly anti-woman by default Thanks for the love. 🩸 — Lisa
About PERIOD. on Product Hunt
“The cycle app that refuses to sell your data.”
PERIOD. was submitted on Product Hunt and earned 0 upvotes and 2 comments, placing #50 on the daily leaderboard. PERIOD. is the EU-built cycle tracking app. An AI assistant trained on women's health — PMS, PCOS, PMDD, contraception, cycle nutrition. No ads. No data resale. Free forever for the basics. Plus (€3.49/mo) unlocks unlimited AI. Bootstrapped in Amsterdam. Servers in Ireland, no US subprocessors for user data. #1 period tracker in the Netherlands with 30,000 active users and ~150 organic signups a day. The privacy-first alternative to Flo and Clue.
On the analytics side, PERIOD. competes within iOS, Health & Fitness and Privacy — topics that collectively have 204.6k followers on Product Hunt. The dashboard above tracks how PERIOD. performed against the three products that launched closest to it on the same day.
Who hunted PERIOD.?
PERIOD. was hunted by Lisa Volkers. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of PERIOD. including community comment highlights and product details, visit the product overview.