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A private gut journal

moss

A private journal for your gut. Log a check-in by photo or by hand and see your own rhythm over the weeks. Photos are read on the phone and never leave it.

iOS

Coming soon
Moss home screen: the moss creature says hello under “A little care, every day.”
Check in your way

Snap a photo, or pick a shape and colour by hand. Symptoms, notes and a past date are optional, and nothing is preselected for you.

Analysis that stays home

A small model on the phone proposes a Bristol shape and a colour, and says when it can't tell. No upload, no account, no analytics.

Your rhythm, not a verdict

Seven- and thirty-day patterns describe what changed. Blood or a worrying colour gets clear, sourced guidance straight away. Never a diagnosis.

A little care, every day.

A check-in with an on-device estimate, labelled experimental, above the shape picker
The journal, a list of check-ins grouped by day
Patterns over seven days: check-in counts and a Bristol type bar chart
The field guide, listing the seven Bristol shapes
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