Most period trackers sell your data. Velle doesn't. We are an offline-first, zero-knowledge cycle tracker built for ultimate privacy. No accounts, no cloud, no ads. Key features: 🔒 Local Encryption: Data stays on your device 🛑 Burner PIN: Instantly wipe all records 🥷 Stealth Mode: Disguise icon as a calculator or notepad 📊 Export raw CSVs or clinician-ready PDFs For your eyes only - inaccessible to tech companies, us, or anyone holding your phone. Your cycle. Your control.

AppSignal — Full-stack monitoring for errors, metrics, and logs

Full-stack monitoring for errors, metrics, and logs

Hi Product Hunt! 👋 I’m Matt, the creator of Velle. As a guy, the world of period tracking wasn't exactly on my radar. But when I looked into the tech behind these apps, it completely blew my mind. Roughly 71% of them share highly sensitive user data with third parties or store it on corporate servers. Cycle data is arguably some of the most private information on a phone. In the current climate of data harvesting, I realised there was a massive need for a tool where data mining wasn't just against the privacy policy, but mathematically impossible. So, I built Velle. It is an offline-first, zero-knowledge tracker. There are no accounts, no ads, and no corporate servers. Since I know this community cares deeply about the technical details, I want to quickly explain how our backups work. We don't use our own cloud. If you want to back up your data, Velle encrypts it locally using a 12-word recovery phrase and saves it to a hidden folder in your personal Google Drive. We have zero access to it. We couldn't read your data if we tried. A few other things I built into it: - The Burner PIN: If you are ever forced to unlock the app, entering this PIN permanently wipes the database. - Stealth Mode: You can disguise the app on your home screen to look like a simple calculator. 📱 How to get it: You can find everything over at getvelle.app. Android users can download it straight from the site today. For the iOS folks, I literally just spun up a waitlist on the same page. I would love for you to join so I can ping you the second the iOS version drops. 🎁 For the PH Community: Velle's core tracking is 100% free forever. But because this community has been so supportive of indie makers, I am giving away Free Lifetime Velle Pro licences for launch day. This unlocks the Burner PIN, Drive backups, and PDF exports forever. You don't have to wait for me to message you. You can just grab a code instantly right here (Android only): https://www.promies.net/promotio... As a solo developer, early reviews mean the absolute world to me. If you love Velle, a rating on the Play Store would be incredible. If you find a bug or have any feature requests, please drop a comment below or message me directly so I can fix it straight away! I’ll be hanging out for some time, so send any questions my way!

AppSignal — Full-stack monitoring for errors, metrics, and logs

Full-stack monitoring for errors, metrics, and logs

Velle

Offline, zero-knowledge period tracking.

Offline, zero-knowledge period tracking.