Stooly - AI Poop & Gut Tracker
Stool Scanner for Bowel Health
Only for iPhone
Free
iPhone
100% free. No ads. No $400 hardware. Just snap a photo — Stooly's AI analyzes your stool in seconds, scores your gut health, and tracks patterns over time. All private.
Your gut health speaks volumes. Stooly makes it effortless to listen.
Snap a photo. In seconds, Stooly's AI analyzes your stool — shape, consistency, color — and translates it into a clear gut health score. No manual logging. No expensive devices. No subscriptions. Just open the app, take a photo, and understand your digestion.
Stooly is 100% free with no ads. Your gut health shouldn't cost $400 or come with a monthly fee.
HOW IT WORKS
Open Stooly → Take a photo → Get instant AI analysis → See your gut health score → Track changes over time.
AI STOOL ANALYSIS
Stooly uses computer vision grounded in the Bristol Stool Scale — the same clinical framework gastroenterologists use — to evaluate stool form, consistency, and color automatically. No buttons to press, no scales to select, no forms to fill out. One photo gives you a complete analysis.
TRACK PATTERNS OVER TIME
A single reading is interesting. A trend is powerful. Stooly helps you:
- See how your gut health score changes across days, weeks, and months
- Spot shifts in stool consistency or appearance before they become problems
- Connect what you eat and how you live to how your gut responds
- Identify patterns you'd never catch on your own
CLEAR INSIGHTS, NOT MEDICAL JARGON
Stooly turns complex digestive signals into plain-language explanations anyone can understand. Visual summaries, trend charts, and simple scores — designed so you actually learn something about your body every time you open the app.
PRIVACY IS NOT OPTIONAL
This is the most personal health data imaginable. Stooly is built to protect it completely.
- Photos are analyzed instantly and discarded immediately — never stored
- Your data is never sold to anyone, period
- Built from day one with privacy-first architecture
You own your data. Full stop.
NO HARDWARE. NO FEES. JUST YOUR PHONE.
Smart toilet sensors can cost hundreds of dollars and require installation. Subscriptions add up month after month. Stooly delivers AI-powered gut health tracking with nothing but the phone already in your pocket. It's free today and it stays free.
BUILT ON CLINICAL SCIENCE
Stooly's analysis is grounded in established clinical research and the Bristol Stool Scale — the standardized classification system used by healthcare professionals worldwide. This is real digestive health awareness backed by science, not a novelty app.
Share your Stooly data with your doctor to make appointments more productive. Bring actual trends and patterns instead of trying to remember what happened last Tuesday.
STOOLY IS FOR
- Anyone curious about understanding their gut health
- People tracking how diet, stress, or lifestyle changes affect digestion
- Those managing IBS, IBD, or other digestive conditions
- Health-conscious people who want data about their body without paying for hardware
- Anyone whose doctor recommended keeping a stool diary
Your gut. Your data. Your health. Free.
Download Stooly and start understanding your digestion today.
What's new: Improved camera, plus you can now text your score to friends. General improvements throughout.
The developer, Four Pi Systems LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Four Pi Systems LLC
- Size
- 2.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 Four Pi Systems LLC