Create your journal, your way.

Record what matters. See what makes a difference.

Free to startNo adsNo card required

Luma's daily check-in: a good-morning greeting and date, a written journal entry, 1-to-5 scales for stress and energy, one-tap symptom pills, and a 'Habits I want to track' row - with cycle day 27, a 56-day streak and an active '2 weeks without dairy' experiment shown above

Screenshots on this page show example data from a demo account, not real user outcomes.

Make it yours

Your journal, designed by you

No two bodies are the same, so no two journals should be either. Pick exactly what you track, switch off what you don't need, and dress the whole app in colours that feel like you.

Night mode, six atmospheres, and your own accent colour
Your symptoms and your habits - not someone else's list
Any section can be renamed, reordered or switched off

The Appearance settings with night mode on: the whole app in deep purple, with six atmosphere backgrounds and six accent colours to choose from

Journal

Write freely, track what matters

Some days you want to pour everything out. Other days you have thirty seconds. Luma meets you where you are - talk and it types, tap what happened, and you're done.

Dictate your day - Luma types as you talk
Symptoms, habits and meals logged in a tap
A different journal prompt every day, from 500+
Run little experiments on yourself, right from the journal

The journal entry box mid-dictation: the mic button is live and red while the sentence types itself out as it is spoken

Your data

Already tracking? Bring it with you

Sleep, steps, heart rate, cycle - if it's in Apple Health, Oura, Whoop or a handful of others, Luma folds it right into your journal. You upload the export file, it's processed on your device, and every extra signal gives Luma more to find patterns in.

Apple Health

Samsung Health

Fitbit

Oura Ring

Whoop

Garmin

The import panel: 'Your data stays private and is only used to help identify patterns in your journal', a row of sources - Apple Health, Samsung Health, Fitbit, Oura, Whoop and Garmin - a how-to-export guide, and a drop zone to upload your export file

Trends

Watch your patterns unfold over time

A single day tells you almost nothing. A month tells you a lot. Luma stitches your days into a calendar, charts and tracker grids, so you can actually see how you've been doing - not just guess.

A month at a glance, with sleep, steps and cycle phases
Charts for every rating you track
30-day views of your symptoms and habits

The history calendar for a full month: each day shows its cycle day, sleep, steps and HRV, with ticks on journalled days, pink shading across the luteal phase and a dot marking ovulation

Patterns

The patterns you'd never spot on your own

You can't hold months of meals, sleep, symptoms and moods in your head at once - but Luma can. It reads across everything you log and surfaces the connections hiding in it, in plain language, so you can see what's actually helping and what's holding you back.

Links what you eat, do and track to how you feel - correlations you would miss by eye
Turns months of scattered entries into a few clear things you can act on
The more you log - food, sleep, cycle, habits - the more it can connect

The 'What matters most' digest: morning walks (energy 3.7 with vs 2.7 without), low-stress days and exercise under 'Linked to better days'; dairy under 'Linked to harder days' with bloating on 70% of dairy days versus 6% without

Your journal, your way

Customise every field. Track what matters to you - energy, mood, symptoms, habits, or anything else.

Effortless to log

Seconds to record. Type, speak, or import - whichever fits your day.

See what makes a difference

Watch how your energy, mood and habits shift across days, weeks and months, and what your best days have in common.

Self-experiments

Don't just spot a pattern. Test it.

A hunch isn't an answer. When Luma spots a pattern, you can turn it into a proper before-and-after experiment - and find out what actually moves the needle for you.

Luma spots a patternSay bloating shows up on 70% of dairy days but only 6% of the rest. The card is honest about what it is: a correlation from your logs, not a diagnosis.
Test it with one tap“Test it: 2 weeks without dairy” starts an experiment. It sits on your Today screen with a day counter so you don't lose the thread.
See the before → afterYour metrics, sleep, and symptoms-per-day are compared against the two weeks before you started - real numbers, not vibes.

A food-pattern card: bloating occurred 70% of the time on dairy days versus 6% otherwise, with the note 'this is a correlation from your logs, not a diagnosis' and a 'Test it: 2 weeks without dairy' button

Practitioner-ready

Bring the evidence to your health practitioner

“How have you been sleeping?” is a hard question to answer from memory. One tap turns your logs into a printable summary for whoever is helping you - a doctor's version with ratings, symptoms and experiment results, or a nutritionist's version focused on food, drink and gut patterns. Made to hand over, not to decode.

A printable 'Health Summary' document covering 8 weeks: average daily ratings with trends, a symptom frequency table, self-experiment results with before-and-after numbers, and observed food patterns

No app store needed

Luma runs right in your browser - free, with no ads. Add it to your home screen and it opens and feels just like a normal app.

Start today

Your first entry takes less than two minutes.

Start free today and see what a week of journaling reveals about your patterns.

Start free - no card needed