I made a privacy friendly and simple app to track my menstruation
Hey HN, after the app I actually used to track my period wanted me to log in and save my data in the cloud, I decided to write my own. Most apps in this area are based on a subscription model and display far too much information anyway. For me, a simple calendar is enough where I can add a few notes if necessary. So that is the result of my work - a simple design and the data is only saved on the smartphone.
In plain words
This is a menstrual cycle tracking app designed for simplicity and privacy. It provides a basic calendar interface where users can log their period and add notes, with all data stored locally on the device rather than synced to cloud servers. The app avoids the subscription model and feature bloat common in period tracking applications, offering straightforward functionality for users who prefer minimal data collection.
written from the facts on this page · September 2026
Does the same job
all alternatives →
- IBI built a privacy-first period tracker but it seems nobody cares2025 · ▲10
There’s something quietly unsettling about how normal it's become to hand over our most personal data to apps that barely deserve our trust. My wife once showed me a notification she got from her period tracking app. At first, it seemed like a simple reminder. But then came the ads. Not long after, she started getting eerily specific suggestions on other platforms. Things she hadn’t searched for. Things that felt too close. Somewhere, her cycle had been turned into a data point. That bothered me more than I can explain. These apps promise helpful insights. But in return, they take so much.…
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