dayunfold by K13 Group

See what moves your days.

A one-minute daily check-in. Log your energy, write one line — and watch your own data reveal whether the moon, the weather, or the daylight actually shape how you feel.

Coming soon to the App Store

No account. No tracking. Your journal never leaves your phone.

One minute a day

Small habit, honest data

Dayunfold asks two things: how's your energy, and what stands out about today. That's the whole habit. Everything else grows out of it.

01

Check in

Rate your energy on a five-dot scale and jot a single line. Twenty seconds on a good day.

02

Watch patterns surface

After two weeks, your averages split across moon phases, rainy and dry days, longer and shorter daylight. Real comparisons, honest thresholds.

03

Think out loud

An AI companion grounded in your recent check-ins — not a script, not a horoscope. Ask it anything about your days.

Patterns

Your data decides

Plenty of apps tell you how the world affects you. Dayunfold checks. Your logged energy is compared against three real, measurable signals — and if there's no pattern, it says so.

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Moon phases Rain vs dry Daylight length
Moon

New and full moons marked on your energy history, with your averages compared across the lunar cycle.

Weather

Rainy days against dry days, from real local weather history. Add a city — no location permission needed.

Daylight

Longer days against shorter ones. In most places the difference is bigger than you think.

Private by design

Your journal stays yours

Entries and energy ratings live on your device — not on our servers. No ads, no data sales, no account required. The AI sees only the recent excerpts needed to answer you, and nothing is used for training.

on-device · no ads · no tracking