
Fathom: AI Gut Diary
Private stool & food tracker
0 ratings
Archived App (Last seen on 9 Aug 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Bloating, irregular days, the "what set me off?" question… Fathom is a calm, private gut diary built to find the answer in your own logs.
LOG IN ~20 SECONDS
• Stool form on the Bristol scale, with a broad colour note
• Food diary — type what you ate and tag factors like dairy, gluten or caffeine
• Hydration, stress and sleep in one gentle daily check-in
GUT DETECTIVE: SPOTS THE PATTERNS FOR YOU
After 14 logged days, the Detective compares your own days and shows what lined up — like a food that appeared more often alongside softer days, or bloating that clustered around high-FODMAP meals. Always with the numbers behind it.
WHY FATHOM?
• No account, no cloud — your diary stays on your device
• No ads; a calm, 20-second flow
• Optional: fill a meal from a photo (the photo is never saved)
• A clean PDF summary you can share
Fathom is a wellness diary: it does not diagnose, detect or treat any condition, and it is not a substitute for professional medical advice.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Show more
What's New in Fathom
1.0.4
July 28, 2026
A new look. Fathom now carries its own mark — a quieter, more considered icon — and the onboarding has been drawn from scratch: bespoke animated motifs, including one that actually shows how Gut Detective compares your own days. Logging stays free, always.
MoreSubscription plans
Premium Monthly
All insights, full history, PDF reports.
$9.991 Month
1
In-App Purchases
$89.99
Premium Lifetime
All Premium features forever with a single purchase.



