Luna - Private Period Tracker
Your period data never leaves your phone. 100% private.
Luna - Private Period Tracker launched on November 25, 2025 with 11 votes, #906 of 9,796 launches that month and more than 50% of that year's launches.
What it does
Luna is the period tracker that actually respects your privacy. With 99% accurate predictions powered by on-device AI, your intimate health data never leaves your phone. No cloud, no sharing, no ads. Track periods, ovulation & symptoms with complete privacy.
Download Luna: Period & Cycle Tracker by APPLU DIGITAL LTDA on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Luna: Period &…
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS. To help you better understand the developer’s responses, see Privacy Definitions and Examples . Privacy practices may vary, for example, based on the features you use or your age. Learn More Privacy practices may vary, for example, based on the features you use or your age. Learn More The developer has not yet indicated which accessibility features this app supports. Learn More Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learnfrom apps.apple.com
Does a similar job
all alternatives →- IMI made a privacy friendly and simple app to track my menstruation2024 · play.google.com · ▲732
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.
Luna - Family period tracker2025 · play.google.com · ▲6Track your menstrual cycle effortlessly with Luna
LadyLog - A period tracker2024 · play.google.com · ▲89Easy to use period tracking app that respects your privacy
Simpluna2021 · simpluna.app · ▲68I'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…
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