Six years of running a period tracker app with no subscription, no ads

Show HN: Six years of running a period tracker app with no subscription, no ads

Six years of running a period tracker app with no subscription, no ads is a business in show hn launch.

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I've been running Simpluna, a period-tracking app, for six years. It's a company based in Tokyo, Japan, but development and operations are basically a one-person effort. The app is built with React Native (Expo).The defining trait of the app is that it's simple, with no unnecessary features. Recording periods, calculating predictions, and sending notifications — that's the core of it. This space is dominated by big players (Flo, Clue, and in Japan, Luna Luna). Building something similar would have been hopeless, so I made the things those apps don't have my selling point.Optional features beyond the basics are offered as one-time purchases. Most apps in this space use subscriptions, but I di

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Website: simpluna.app/en