PoopCheck vs Stooly
Free, ad-free AI poop and gut tracker built around a single daily photo — no subscription, no hardware, iOS-only.
The short answer
Stooly: Stooly's hard-line stance on price and privacy is the real differentiator. The app is genuinely free with no subscription tier, no in-app purchases, and no ads, and photos are analysed in-flight then discarded — they're never stored on a server. For users who want AI stool analysis but don't want a cloud library of their photos or a subscription prompt, that combination is unusually clean. The product itself stays focused: a photo, a Bristol-grounded score, and a trend view.
PoopCheck: AI-first stool analysis — take a photo, get Bristol type + color + consistency + a daily gut-health score automatically. Broader feature set; built for consumer self-tracking.
| Feature | Stooly | PoopCheck |
|---|---|---|
| AI photo analysis of stool Both apps classify Bristol type, color and consistency from a single photo. Stooly is the closest direct feature-parity rival on this core capability. | ✓ | ✓ |
| Bristol Stool Scale classification Both ground their AI in the Bristol scale and surface the type to the user. | Automatic from photo | Automatic from photo |
| Daily gut-health score Both apps roll the per-log analysis into a single gut-health score that trends over time. | ✓ | ✓ |
| Trend and pattern analysis (days / weeks / months) | ✓ | ✓ |
| AI digestive chat assistant Stooly's public materials don't describe an interactive AI assistant — it's analysis + trends, not chat. | — | SOFTie (Premium) |
| Photo handling Stooly's privacy stance is its clearest differentiator: photos are deleted immediately after analysis. | Analysed then discarded — never stored on servers | Cloud-synced with account controls |
| Community / leaderboard | — | ✓ |
| Gamification / streaks / rewards | — | ✓ |
| Food and lifestyle correlation | Surfaces correlations across diet, sleep and habits in trend view | Coming with Premium analytics |
| Apple Health integration | Not described in public materials | ✓ |
| Android availability Stooly is iOS-only as of May 2026; PoopCheck ships on both iOS and Android. | — | ✓ |
| Free tier with no ads | Free, no ads, no subscription | Free, no ads — Premium is optional |
| Premium tier with deeper analytics | — | $6.99/mo or $49.99/yr (SOFTie, advanced analytics, exports) |
Where Stooly is stronger
Stooly's hard-line stance on price and privacy is the real differentiator. The app is genuinely free with no subscription tier, no in-app purchases, and no ads, and photos are analysed in-flight then discarded — they're never stored on a server. For users who want AI stool analysis but don't want a cloud library of their photos or a subscription prompt, that combination is unusually clean. The product itself stays focused: a photo, a Bristol-grounded score, and a trend view.
Where PoopCheck is stronger
PoopCheck's AI vision layer is the core difference — most competitors in this space rely on manual selection of Bristol type, color, and consistency. PoopCheck does all three from a single photo in seconds. Combined with the daily gut-health score, users get a trending signal instead of a pile of disconnected log entries.
Premium ($6.99 USD/month or $49.99/year) adds SOFTie, an AI digestive assistant that contextualizes your tracking data, plus advanced analytics, exports, and priority support.
Who should pick Stooly
If you're on iOS, you want AI stool analysis with the strictest possible privacy posture (photos discarded immediately, no cloud library) and a permanent guarantee of no subscription or ads, Stooly is the cleaner fit. It's also the right pick if you actively want a minimal app and find broader trackers overwhelming.
Who should pick PoopCheck
If you're on Android, want an AI digestive chat assistant (SOFTie), gamification and community, Apple Health integration, or the ability to keep your photo history for context, PoopCheck is the better fit. PoopCheck's free tier is also ad-free, so you don't have to give up the no-ads experience to get the broader feature set.
FAQ
Is PoopCheck a good alternative to Stooly?
If you're on Android, want an AI digestive chat assistant (SOFTie), gamification and community, Apple Health integration, or the ability to keep your photo history for context, PoopCheck is the better fit. PoopCheck's free tier is also ad-free, so you don't have to give up the no-ads experience to get the broader feature set. See the full feature comparison above.
Which app is better for me — PoopCheck or Stooly?
If you're on iOS, you want AI stool analysis with the strictest possible privacy posture (photos discarded immediately, no cloud library) and a permanent guarantee of no subscription or ads, Stooly is the cleaner fit. It's also the right pick if you actively want a minimal app and find broader trackers overwhelming. Conversely: If you're on Android, want an AI digestive chat assistant (SOFTie), gamification and community, Apple Health integration, or the ability to keep your photo history for context, PoopCheck is the better fit. PoopCheck's free tier is also ad-free, so you don't have to give up the no-ads experience to get the broader feature set.
How much does PoopCheck cost vs Stooly?
PoopCheck is free to use; PoopCheck Premium is $6.99 USD/month or $49.99 USD/year. Stooly is 100% free with no subscription, no in-app purchases, and no ads, per its own website and App Store listing. There is no premium tier to upgrade to.
Can I switch from Stooly to PoopCheck and keep my history?
Direct migration isn't available today. You can export your Stooly data and keep it for reference; PoopCheck starts fresh with your first photo and builds the history automatically.
Related
- The Bristol Stool Scale — complete guide
- 10 evidence-based ways to improve gut health
- Fiber and stool consistency
Sources
- Stooly — Free AI Gut Health Tracking (official site)
- Stooly – AI Poop & Gut Tracker on the App Store
- Stooly AI on the App Store (alternate listing)
- Stooly customer reviews aggregator (Sociable Labs)
- Bristol Stool Scale – Continence Foundation of Australia (clinical reference for both apps' classification)
Last verified: 2026-05-20. Competitor features and pricing may have changed since this date — tell us via support if anything is out of date.
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AI stool analysis, Bristol Scale classification, and a daily gut-health score — all in seconds from a photo.
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