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Perla
Period tracking that never sees your data. Fully on-device.
The period tracker that never sees your data. No account. No cloud. No ads. Everything runs on your device. We built Perla after our wives got frustrated with trackers that sell data or blast ads. So we skipped the server entirely. The prediction engine, AI insights (Apple Intelligence), and fertility scoring all run locally. Apple Watch wrist temperature replaces expensive thermometers. Adapts to PCOS, endometriosis, pregnancy, and 8 birth control methods. $19.99/year or $49.99 lifetime.
Hey Product Hunt! I'm Matt, and my brother Patryk and I built Perla because our wives were fed up with period trackers that harvest data, show ads, and charge a fortune.
Our approach was radical: we just didn't build a server. There's no backend, no accounts, no analytics SDKs. Your cycle data never leaves your phone. Period.
What makes Perla different: - 4-layer prediction engine runs 100% on-device - AI insights powered by Apple Intelligence (no network calls) - Apple Watch wrist temperature for BBT (no $150 thermometer needed) - Adapts to health conditions like PCOS, endometriosis, perimenopause - Transparent fertility scoring that shows you WHY, not just what PDF doctor reports you can bring to appointments
We're $19.99/year or $49.99 lifetime. That's 6x cheaper than the leading competitor, and we don't make you buy a thermometer.
As a thank you to the PH community, use code PRODUCTHUNT to get your first year for $14.99 (25% off).
We're fully bootstrapped, no investors, no board, no one telling us to monetize your health data.
We'd love your feedback. Ask us anything!
About Perla on Product Hunt
“Period tracking that never sees your data. Fully on-device.”
Perla was submitted on Product Hunt and earned 10 upvotes and 2 comments, placing #55 on the daily leaderboard. The period tracker that never sees your data. No account. No cloud. No ads. Everything runs on your device. We built Perla after our wives got frustrated with trackers that sell data or blast ads. So we skipped the server entirely. The prediction engine, AI insights (Apple Intelligence), and fertility scoring all run locally. Apple Watch wrist temperature replaces expensive thermometers. Adapts to PCOS, endometriosis, pregnancy, and 8 birth control methods. $19.99/year or $49.99 lifetime.
On the analytics side, Perla competes within Health & Fitness, Privacy and Apple — topics that collectively have 108.9k followers on Product Hunt. The dashboard above tracks how Perla performed against the three products that launched closest to it on the same day.
Who hunted Perla?
Perla was hunted by Mateusz Zatorski. 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 Perla including community comment highlights and product details, visit the product overview.
Mateusz Zatorski
Hey Product Hunt! I'm Matt, and my brother Patryk and I built Perla because our wives were fed up with period trackers that harvest data, show ads, and charge a fortune.
Our approach was radical: we just didn't build a server. There's no backend, no accounts, no analytics SDKs. Your cycle data never leaves your phone. Period.
What makes Perla different:
- 4-layer prediction engine runs 100% on-device
- AI insights powered by Apple Intelligence (no network calls)
- Apple Watch wrist temperature for BBT (no $150 thermometer needed)
- Adapts to health conditions like PCOS, endometriosis, perimenopause
- Transparent fertility scoring that shows you WHY, not just what
PDF doctor reports you can bring to appointments
We're $19.99/year or $49.99 lifetime. That's 6x cheaper than the leading competitor, and we don't make you buy a thermometer.
As a thank you to the PH community, use code PRODUCTHUNT to get your first year for $14.99 (25% off).
We're fully bootstrapped, no investors, no board, no one telling us to monetize your health data.
We'd love your feedback. Ask us anything!