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Number Two

Know your gut.

Get the app
Hanky, the mascot: three teal lobes with two dot eyes.

  1. Photograph the bowl.

  2. Hanky reads it.

  3. And finds the patterns.

You keep track.
We keep it simple.

The home screen: Hanky at rest above a list of recent logs and a log button.
A little log.A better picture.
The journal: a month of logs as a grid of thumbnails.
Your routine.On the record.
Logging symptoms: a grid of symptom chips and a severity choice.
How you go.How you feel.
The Privacy Center: sharing switches, a copy of your data, and delete everything.
Personal stuff.Personal choices.

Thousands of logs behind every report.

Number Two learns from thousands of logs to predict what tends to come next for your gut — days before it does.

Powered by AI, sharpened by everyone who logs.

A report: 34% of people with this pattern logged a stomach bug within 7 days, with the baseline and confidence interval underneath.
The map: your logs and your friends’ as pins and clusters across a city, with a filter for whose you’re seeing.

Better with friends.

Share your log with a friend and see how they’re doing. Every log lands on your map — and on theirs, if you say so.

The map is off until you turn it on. Friends see your pins only if you choose.

  • Your photos stay yours.
  • Delete everything in one tap.
  • Never sold, never used for advertising.
Read the privacy policy

Know your gut.

Free on iPhone. Better with friends.