30-second check-in
One tap for mood, one for energy, a slider for sleep. Done before your coffee's cold.
Mood · Moon · Mathematics
Track your mood. Blame the moon.
A 30-second daily check-in that quietly tags how you feel with tonight's exact lunar phase. Over time, see whether the moon actually moves you — or doesn't.
What it does
Small ritual. Real data. Zero noise.
Real astronomy
Phase, illumination, zodiac, moonrise — computed from Meeus' algorithms. No API calls. No ads.
Find your patterns
Watch your mood trend overlay moon illumination. Discover which phases actually move you.
100% offline
No accounts, no servers, no tracking. Your data stays on your device. Always.
See it
The whole ritual, in one thumb.
Home, check-in, calendar, patterns, community compare — swipe through.
The lunar cycle
Every phase, every mood, all on one calendar.
Tap any day to see the moon's exact state and the mood you logged. Your life, lit up by science.
- New
- Wax. Crescent
- First Quarter
- Wax. Gibbous
- Full
- Tonight Wan. Gibbous
- Last Quarter
- Wan. Crescent
Skeptics welcome. Believers welcome. Data doesn't pick sides.
Start tonight. Your first pattern shows up in about a month.
Free, offline, ad-free. 30 seconds a day. No accounts, no trackers, no nonsense.