Snap a photo. Get your gut health score and personalized insights in seconds. See how your diet, sleep, and habits shape your gut health over time. No hardware, no subscription. 100% free.
Download Free on the App Store
Gut health is measurable. Your 0-100 Gut Health Score evaluates form, consistency, frequency, and irregularity. See the real impact of how you eat, sleep, train, and live.
No manual logging. No forms. One photo, one score.
Stooly analyzes your gut health over time to highlight meaningful shifts, reveal correlations, and surface patterns across diet, sleep, and daily habits.
A single photo feeds our AI engine dozens of clinical signals. Stooly doesn't just classify — it builds a living profile of your digestive health, scan after scan, week after week.
Bristol Scale Types 1–7
Automatic classification across the full Bristol Stool Scale. No charts to memorize, no manual selection — our AI reads form and structure instantly.
Chromatic health signals
Color carries clinical meaning. Stooly evaluates hue and shade to track changes over time and surface deviations worth noting — giving you data to bring to your doctor, not guesses.
Texture & composition
Beyond form type, our model evaluates surface characteristics, cohesion, and structural integrity — the subtle details that distinguish a healthy gut from one under stress.
Rhythm & regularity
How often and when matters. Stooly tracks daily, weekly, and monthly frequency alongside time-of-day patterns and intervals between scans. Your gut runs on a clock — Stooly learns its rhythm.
Connect the dots between gut and lifestyle
Stooly surfaces links between your gut health score and your daily habits — diet changes, sleep quality, exercise, hydration, stress, and travel. See what actually moves the needle.
Intelligence that learns you
Not generic advice — insights calibrated to your personal baseline. Stooly learns what's normal for you, so when something changes, you know it matters.
Stooly's AI is built on the Bristol Stool Scale — the same standardized classification system gastroenterologists use worldwide. Our scoring model combines established clinical research with modern computer vision to analyze stool form, consistency, and color with clinical-grade accuracy.
Photos are analyzed instantly and discarded immediately — they are never stored on our servers. Only the health insights from your analysis are saved, so you can track trends over time. Your data is never sold. It is never shared with third parties. And you can delete everything at any time.
Your gut health data. Your control.
Take a photo. That's it. No forms, no manual logging, no Bristol Scale charts to study. One tap.
Advanced AI evaluates stool appearance, calculates your Gut Health Score, and compares it to your personal trends.
Monitor your score, identify trends, understand patterns, and stay informed about meaningful changes in your digestive health.
| Feature |
Stooly
|
Throne |
|---|---|---|
| Price | Free | $399 |
| Monthly subscription | None | $6/month |
| Ad-free | ||
| AI stool analysis | Yes | Yes |
| Gut health score | Yes (0-100) | Yes (0-100) |
| Works away from home | Yes, anywhere | No |
| Privacy | Photos never stored | Stores and retains your photos |
Stooly gives you AI-powered gut health tracking with just your phone — free, private, and available anywhere you go.
Tracking how diet changes, supplements, and lifestyle shifts affect your gut health over time.
Living with IBS, IBD, or other digestive conditions and want data to share with your care team.
Your doctor recommended a stool diary — Stooly makes it effortless with automated AI analysis.
You track your sleep, steps, and recovery — now close the loop on gut health. The missing metric for anyone optimizing their body with data.
Yes, completely. No subscription, no premium tier, no in-app purchases, no ads. Stooly is 100% free. We believe gut health awareness should be accessible to everyone, not locked behind a paywall or a $400 device.
There's no catch. Stooly is built by a small team passionate about making gut health tracking accessible. We may introduce optional premium features in the future, but the core experience — AI analysis, gut health scoring, and trend tracking — will always be free. We don't sell your data. We don't show ads. We don't monetize your health.
Stooly's AI is built on the Bristol Stool Scale, the standardized clinical framework used by gastroenterologists worldwide. Our computer vision model evaluates stool form, consistency, and color to generate your gut health score. While no app replaces professional medical advice, Stooly provides clinically-grounded insights that help you understand your digestive patterns and have more productive conversations with your doctor.
Extremely. Your photos are analyzed and never stored — they're processed and immediately discarded. Your health data is never sold and never shared with third parties. And you can delete all your data at any time.
Throne is a $399 hardware sensor that mounts to your toilet, only works at home, and carries a $6 monthly subscription fee. Stooly uses hardware you already have — your phone. Both companies use advanced computer vision to offer a 0-100 gut health score and help you track long-term trends. The difference is Stooly is free, works anywhere, and doesn't require installing anything on your toilet. Stooly also never stores your photos — unlike Throne, which keeps them on its servers.
Most stool tracking apps require manual logging — you select a Bristol Scale type, enter notes, fill out forms. Stooly skips all of that. Just take a photo and our AI handles the analysis automatically. You get a gut health score, personalized insights, and trend tracking without pressing buttons or filling out charts.
Yes. Many gastroenterologists recommend keeping a stool diary, and Stooly makes that effortless. You can share your trends, scores, and insights with your healthcare provider to make appointments more productive — with real data instead of trying to remember what happened last week.
No. Stooly is a wellness tool designed to help you understand digestive patterns and track gut health over time. It does not diagnose, treat, or prevent any disease or condition. Always consult a qualified healthcare provider for medical concerns.
No hardware. No subscription. No ads.
