PERIOD. on BNR's De Grote Tech Show: 'We figure out how to safely manage your intimate data'

Today we were on De Grote Tech Show on BNR Nieuwsradio with hosts Joe van Burik and Ben van der Burg. An honest, sharp conversation about why we built PERIOD. how we built it, and why intimate health data should not be a business model.

🎧 Listen on Spotify · Listen via BNR

What we talked about

Millions of women use cycle apps to log their periods, symptoms and mood. That some of these apps collect and share far more data than users expect is a recurring point of criticism from privacy organisations and regulators.

Lisa told Joe and Ben how she and her partner Diederick built a Dutch privacy-first cycle app, without a technical background, with a lot of creative will, and using vibecoding (building with AI). And that we're now racing toward 100,000 users.

The gist in three points

• Privacy by design. Your data lives on EU servers in Frankfurt, encrypted at rest and in transit. No ad trackers, no Facebook SDK, no Google Analytics. Read our privacy policy.
• The basics stay free. No ads. Why we keep it that way →
• Building with AI. A small team can ship a serious app today, if you know what you want and where you refuse to compromise.

About De Grote Tech Show

De Grote Tech Show is the leading Dutch tech podcast and radio show on BNR Nieuwsradio, hosted by Joe van Burik and Ben van der Burg. Weekly deep-dive conversations with innovation leaders on AI, cybersecurity, social media, chips and everything moving the tech world.

Listen

• 🎧 Spotify
• 📻 BNR website
• 📱 BNR App · Apple Podcasts · Podcast.nl

Want a cycle app where your data truly stays yours? Download PERIOD. on the App Store or via Google Play. The basics stay free.

Thanks to Joe, Ben and the whole BNR team for the conversation. 🧡