Your body has been leaving you notes for years. Start reading them.

A field notebook for noticing patterns between what you eat and how you feel. Note meals and symptoms in seconds; a statistical engine — on your phone, not on a server — finds patterns and always tells you how strong the evidence is.

Join the listRead the data pact

Not a calorie counter. Not fitness. Not a community. It's a journal that thinks slowly.

It observes, correlates and prepares conversations with your doctor. It never diagnoses or treats — medical decisions still belong with your doctor.

Spanish first. Every word exists just as well in English.

low agreement

agreement among providers reading the same paper journal is low — which is why computational correlation matters

10 s

the capture promise: one tap on a label or your voice — “coffee with milk and toast” becomes a structured entry, no forms

0 AI servers

the pattern engine thinks on your phone, not in the cloud — zero server AI on the free plan; your data lives in your own private account, and export-all and delete-all are buttons

the notebook

It feels like paper. It thinks in statistics.

Labels that learn from you (anything you log 3 times becomes permanent), an “all good” stamp for good days — no streaks, no guilt — and your history as a ledger with four calm ink charts.

already in private beta

the difference

An app that would rather say "I don't know yet."

card no.1fisher · 4–24 h

dairy appeared before your abdominal pain 4 of 5 times

● strong evidence
card no.2fisher · 4–24 h

antacids appeared before your nausea 3 of 4 times

◐ weak evidence
card no.3waiting

coffee: 3 logged exposures — I need more good days to be sure

○ watching
what matters
typical trackers
semé
Does evidence say how strong it is?
correlations without values, or cause and effect reversed
● / ◐ / ○ always visible, with temporal order
Where does your health data live?
in the cloud, behind a subscription
in your own private account; the pattern engine runs on your phone, no server AI
First-class Spanish?
gluten scanners and guides; no discovery journal
born in Spanish, full parity in English
Guilt?
streaks, “you missed 3 days”
never — empty days simply don't appear
at night · and later

The 8 pm reminder arrives on a phone that's already dark.

A night mode of dimmed linen and light olive — warm, never surgical. And when you want more memory, a single membership adds reasoning over your long history. The same bright line: observe, correlate, prepare. Never treat.

Talk with your history

Months of entries, natural-language questions, longitudinal memory.

Weekly readings

Calm narratives with multi-factor patterns beyond the on-device engine.

A summary for your visit

Generated from your own journal — you decide what to bring.

the letter

Built first for one person.

This app exists because someone I love lives with a gluten allergy and colitis, and jotting everything into scattered notes never gave her a north — and the apps made her feel indebted to a streak.

So the pact is simple: your data is yours, the evidence states its own strength, empty days don't accuse, and the app prepares the conversation with your doctor — it never replaces them.

— the founders

October 2026. Free to start.

Do you have an iPhone?

no spam · one email at launch · es + en

By joining, you agree we'll store your email to contact you about the semé beta — nothing else.