Mood Moons

About

Mood Moons is a private, end-to-end encrypted mood tracker for anyone who wants to understand their emotional patterns — and it's built with a twist: it helps you explore how your moods relate to the phases of the moon. Your feelings are some of the most personal data there is. Mood Moons treats them that way. Every mood entry and note is encrypted on your device before it's ever saved, using strong modern cryptography. The encryption key lives in your iPhone's secure keychain and never leaves it. Our servers only ever hold scrambled data they cannot read — not us, not anyone. WHY PEOPLE USE MOOD MOONS • Log a mood in seconds — capture how you feel, your emotional intensity, and a private note whenever the moment strikes. • See the bigger picture — a clean dashboard turns your entries into a mood chart so trends and turning points become easy to spot. • Follow the moon — overlay your moods against the lunar cycle and see for yourself whether a pattern emerges. • Look back with ease — browse your history by day and revisit past entries. PRIVACY BY DESIGN • End-to-end encryption: entries are sealed on your device with a key only you hold. Plaintext never leaves your phone. • Local-first: your entries save instantly on-device, so the app is fast and works even without a connection. • Encrypted backup & sync: turn on optional backup to protect your history and move it to a new device. Your data is unlocked with a one-time recovery phrase that only you know — we can never recover it for you, because we can't read it. • Passwordless sign-in: add a passkey and sign in with Face ID. YOUR DATA, YOUR CONTROL You're always in charge. Open the Account tab and you can permanently delete your account at any time — this erases everything, on your device and on our servers, immediately and completely. No emails, no waiting, no leftovers. WHO IT'S FOR Mood Moons was born out of a desire to track intense and shifting moods with dignity and privacy — including for people living with BPD and other conditions where mood awareness matters. Whether you're working with a therapist, building self-awareness, or simply curious about your own rhythms, it gives you a calm, private place to notice how you feel over time. A NOTE ON THE MOON The idea that mood follows the lunar cycle is not established science. Mood Moons is a tool for reflection and self-discovery, not a diagnosis or a prediction. Treat any pattern you find as a prompt for curiosity — and, if you need it, a conversation with a professional. Mood Moons is not a medical device and does not provide medical advice, diagnosis, or treatment. If you are in crisis or need support, please reach out to a qualified professional or your local emergency services. Start tracking — privately — today.