Comparison

Bristol Stool Chart vs Step 10 AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bristol Stool Chart

Monitor your digestive health with this tool that helps you rate and record stool quality over time. Visualize your progress with easy-to-interpret graphs and access information about different stool types. Optionally track blood in your stools and share data with your healthcare provider.

Highlights
  • High-resolution images of stool types
  • Quick stool quality rating
  • Record stool information over time
  • Optional notes and blood tracking
  • Interpretable stool quality graph
  • Information on stool types
Features
Read full description

The Bristol Stool Chart app brings new high-resolution images based on the original chart to your device. It allows you to quickly and easily rate your stool quality and record the information over time. You can also optionally add notes and enable a feature to track blood in your stools. Stool quality is displayed as an easy to interpret graph which can be shared with your health professional. The app also presents you with information about each type of stool along with links to more information online. Free and easy to use, this tool makes it easy to monitor your digestive health.

About

Step 10 AI

Features
Read full description

Step 10 AI is a private, no-account journal built around one thing: a daily tenth-step practice. FOUR WAYS TO WORK STEP TEN • Classic 10 — the ten classic questions, as one quick scroll. Yes or no on each, with an optional note. • Journal inventory — the fuller nightly review, walked through one screen at a time. • Spot check — for the moment something happens, a quick check-in rather than a full review. • Gratitude — a running list, one day at a time. REFLECT WITH AI, ON YOUR OWN TERMS Add your own Anthropic API key and Step 10 AI can offer a reflective response to what you've written, or talk it through with you in a chat that draws on your own recent entries. No key, no AI features — everything else works exactly the same either way, and nothing is ever sent anywhere until you choose to use one of these features. A MORNING NUDGE, IF YOU WANT ONE Answer "What could we have done better?" during a nightly review, and get a quiet reminder the next morning to come back to it — just a nudge, with nothing shown on the lock screen. YOUR DATA, ON YOUR DEVICE Everything you log stays on your phone. There's no account, no sign-in, and no server run by this app. Export your full log to a file whenever you want, and import it back in on another device. PRIVACY, PLAINLY Nothing you write ever leaves your device unless you actively use an AI feature — and even then, it goes straight from your phone to Anthropic's API, never through, and never retrievable by, the developer. Step 10 AI is an independent app. In keeping with Tradition 6, it is not endorsed by, and has no affiliation with, AA or any other twelve-step fellowship.

Screenshots

Bristol Stool Chart4 screens
Step 10 AI4 screens

Verdict

The call

The clearest difference is update cadence: Step 10 AI at every 5 days against Bristol Stool Chart's every 2 months. Bristol Stool Chart's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bristol Stool Chart ships an update every 2 months, Step 10 AI every 5 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Bristol Stool Chart versus Step 10 AI: the parameters behind the verdict, then further details
ParameterBristol Stool ChartStep 10 AI
PriceFreeFree
Rating2.4 (10 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size29 MB2 MB
Age rating4+17+
DeveloperWeb Garden LimitedNEIL ANTHONY THORMAN

In-app purchases

None

Bristol Stool Chart

No in-app purchases

None

Step 10 AI

No in-app purchases

Questions

Is Bristol Stool Chart free?
Bristol Stool Chart is free to download, with no in-app purchases.
Is Step 10 AI free?
Step 10 AI is free to download, with no in-app purchases.
Do Bristol Stool Chart or Step 10 AI have ads?
Neither Bristol Stool Chart nor Step 10 AI shows ads.
Which is updated more often, Bristol Stool Chart or Step 10 AI?
Bristol Stool Chart ships an update every 2 months, and Step 10 AI every 5 days. Most recently, Bristol Stool Chart was updated on October 26, 2026 and Step 10 AI on October 25, 2026.

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