--- title: "Privacy at PERIOD. vs. other cycle apps, explained in plain language" description: "What we do and don't do with your intimate cycle data, and how that differs from big tracker apps. A transparent explainer based on our actual privacy policy." url: https://myperiod.app/en/blog/privacy-period-vs-andere-cyclus-apps lang: en date: 2025-11-12 publisher: PERIOD. B.V., Amsterdam --- [Back to blog](https://myperiod.app/blog) [Privacy & PERIOD.](https://myperiod.app/blog/categorie/privacy) · 6 min read # Privacy at PERIOD. vs. other cycle apps, explained in plain language [Lees dit artikel in het Nederlands](https://myperiod.app/blog/privacy-period-vs-andere-cyclus-apps) PERIOD. team · November 12, 2025 Cycle apps know **a lot** about you: when you bleed, when you have sex, whether you're trying to conceive, how you sleep, how you feel. That's intimate data, and many popular apps either sell it, share it with ad networks, or store it on servers far outside Europe. At PERIOD. we do things differently. Below is exactly how, in plain language, based on our actual [privacy policy](https://myperiod.app/privacy). No marketing fluff. ## 1. What do we store? Only what the app needs. - **Account:** email (to log in) and optionally a display name. - **Cycle:** start and end dates of your period, flow intensity, and symptoms or notes you choose to log. - **Profile (optional):** things like weight, contraception, conditions (PMS, PMDD, PCOS, endometriosis), only if you enter them yourself, for better predictions. - **AI conversations:** what you type to the AI, so you can revisit your own chat history. ## 2. What do we *not* collect? - ❌ **No cookies in the app.** No tracking pixels, no ad cookies. On our website we only use what's strictly necessary for the site to function. - ❌ **No analytics.** No Google Analytics, no Meta pixels, no Mixpanel, nothing tracking your behaviour. - ❌ **No location.** We don't know where you are. - ❌ **No advertising ID.** We don't ask for tracking permission and never link your data to an advertising ID. - ❌ **No data from other apps.** We don't peek into your health app, calendar or messages. ## 3. Do we sell your data? No. Not even "anonymised". We **never** sell, rent or share your data with third parties for marketing, advertising or commercial purposes. No advertisers, no data brokers, no insurers, no research institutions. Full stop. This is where we genuinely differ from many big tracker apps. Investigations (including by [Radar / AVROTROS](https://myperiod.app/blog/radar-avrotros-menstruatie-apps-data)) have shown that popular period apps share cycle and pregnancy data with third parties, sometimes even ad networks. We don't. That isn't a marketing line; it's literally section 7 of our [privacy policy](https://myperiod.app/privacy). ## 4. Where does your data live? In the EU. Encrypted. - 📍 **Servers inside the European Union.** Your data falls under GDPR. - 🔒 **Encrypted in transit and at rest** (HTTPS/TLS + encryption at rest). - 🛡️ **Row-level security.** At the database level, only *you* can access your rows, not other PERIOD. users, and not our staff in normal flows. ## 5. Who helps us technically, and what do they see? We're a small team. We rely on a handful of *sub-processors*, all named in section 7 of our privacy policy: - **Database & auth (Supabase):** hosts your account and data on EU servers. Acts strictly on our instructions. - **Secured AI gateway:** routes your AI requests to the underlying model (Google Gemini). Under the gateway's terms, your messages are not used to train models. - **Apple & Google:** distribute the app via the App Store and Google Play. They see downloads and crash stats on your device under their own policies, we don't receive that personal data. - **AppsFlyer (iOS only):** measures whether an install came from one of our campaigns. Receives no advertising ID and no cycle or health data. - **RevenueCat:** handles PERIOD. plus subscriptions. Sees payment status, no health data. ## 6. And the AI assistant? Our AI assistant (Google Gemini, via a secured gateway) can answer questions about your cycle. Hard rules apply: - ✅ You must give **explicit consent** first. No consent = no AI. - ✅ Per the AI gateway's terms, your messages are **not used to train models**. - ✅ Your conversations are stored in **our own database** (so you can read them back), not at the AI provider. - ✅ Everything runs over encrypted connections. - ✅ You can delete your account at any time, your AI conversations go with it. ## 7. Your rights, concretely - **Access:** everything we have is visible to you in the app. - **Correction:** change your data anytime. - **Erasure:** Settings → Delete account wipes *everything*: live data within 30 days, backups within another 14. Including AI chats, symptoms and profile. - **Object or complain:** reach us at [hi@myperiod.app](mailto:hi@myperiod.app), or the Dutch Data Protection Authority. ## 8. PERIOD. vs. other apps, the short version - **Tracking & cookies:** we don't. Many other apps do. - **Ads:** we have zero. Many other apps run on ad models. - **Sharing data with third parties:** we share nothing for marketing or ads. Other apps have repeatedly been called out for this. - **Servers:** we run in the EU. Many large apps run (partly) in the US. - **Account deletion:** one button in the app, everything truly gone. Not always that easy elsewhere. - **Owner:** small, female-led team in Amsterdam, led by Lisa Volkers. No shareholders pushing for growth-via-data. ## Read the source - 📄 [PERIOD.'s full privacy policy](https://myperiod.app/privacy) - 📄 [Terms of use](https://myperiod.app/terms) - 🗑️ [Delete account](https://myperiod.app/delete-account) Want to try PERIOD.? [Download from the App Store](https://apps.apple.com/us/app/period-cycle-period-tracker/id6757947793) or [on Google Play](https://play.google.com/store/apps/details?id=app.myperiod.android). Free. Ad-free. Your data stays yours. Want to understand your cycle better? ## Keep reading [Best period tracker app for privacy in 2026: 6 questions that decide itWhich cycle app is safest for your data? Six questions to test any app in two minutes, plus how Flo, Clue, Natural Cycles and PERIOD. compare.Read more](https://myperiod.app/blog/best-period-tracker-app-privacy-2026)[Is PERIOD. free? What the app really costs (and what it does not)Short answer: yes. Tracking your cycle, predictions and reminders cost nothing. Plus and baby are extras. Here is exactly what is what, no fine print.Read more](https://myperiod.app/en/blog/is-period-gratis-wat-kost-de-app)[Does my period app sell my data? How to check in 5 minutesShort answer: you cannot tell from the app itself, but you can from the privacy policy and the trackers. Five checks you can do yourself, on any cycle app, including ours.Read more](https://myperiod.app/en/blog/verkoopt-mijn-menstruatie-app-mijn-data-checklist)