Track your mood with the Moon

Log how the day felt in one tap. LunarLog records the Moon's phase, sign and speed beside every entry — then shows you whether any of it actually moved you.

Download on the App Store
LunarLog showing the live orrery — Sun, Moon and Earth with a year of logged moods orbiting the zodiac wheel
Private by designNo ads, no tracking, no accounts
Syncs with iCloudYour journal, on every device
Real astronomyEphemeris, not horoscopes
Built by one personEvery review gets a reply

Mood journal, diary & calendar

Tap one of five moons and the day is logged. Add a note, a photo, emotions — or nothing at all. A month of your life reads as a sky: bright days glow gold, heavy ones go blue.

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LunarLog month calendar with each logged day drawn as a coloured moon face

Moon phase & lunar calendar

Every day carries its real moon phase, the Moon's zodiac sign to the arcsecond, and how fast it's moving. Scroll back through any month, or forward to the next Full Moon.

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The Nebula view — a spiral of logged days around the zodiac, with one day's entry open

Mood patterns & charts

Once you've logged enough days, LunarLog looks for the shape of them: your best and hardest moon sign, how each phase tends to find you, whether sleep and steps track with how you feel.

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Patterns screen — mood breakdown bars and a mood-by-moon-sign chart, with best and challenging signs

Sleep tracking with the lunar cycle

LunarLog reads sleep and steps from Apple Health and sets them beside each logged day — so "I slept badly and the Moon was full" stops being a feeling and starts being data.

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What Moves Your Mood — ranked pull of steps, sleep, moon speed, moon phase and moon sign on mood

We tell you the truth, even when it isn't the Moon

Most moon apps are built to agree with you. LunarLog ranks every influence it measures — sleep, steps, moon phase, moon sign — and if the Moon comes last, it says so. Sometimes the honest answer is that your days find their own weather. That's still worth knowing.

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Live sun, moon & Earth

A working orrery of the real sky, with a year of your moods orbiting it.

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iCloud sync

Private CloudKit sync. Your entries never touch a server we own.

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The Moon texts you

A daily nudge in the Moon's own voice — different in every sign.

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Apple Health

Steps and sleep read in automatically, beside every day you log.

Start with tonight's moon

Free to use. One tap a day. In a month you'll know something about yourself you didn't before.

Download on the App Store