Comparison

S.Tool vs OopsieWhoopsie

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

Head to head
About

S.Tool

Features
Read full description

What does S.Tool offer? ・ Record bowel movements, complaints, diet and medication ・ Overview in handy graphs ・ Securely share data with your healthcare providers Privacy guaranteed – Your data is securely stored according to GDPR guidelines and used exclusively for scientific research. Please note: S.Tool does not replace medical advice. Always consult your doctor for health problems.

About

OopsieWhoopsie

Features
Read full description

OopsieWhoopsie makes it simple to track your bowel movements and better understand your digestive patterns over time. Log each visit using the Bristol Stool Scale, record the size, date, and time, and optionally add notes or a photo. Clear daily, weekly, monthly, and long-term views help you spot changes in your routine and provide useful context when discussing concerns with a healthcare professional. KEY FEATURES • Log bowel movements using Bristol types I–VII • Record size, date, time, notes, and optional photos • Review daily timelines and weekly patterns • Explore monthly activity calendars and Bristol type distributions • Follow long-term trends across your complete history • Export selected data as plain text or CSV • Log faster with widgets, Siri, and App Shortcuts • Adjust warning thresholds for persistent stool patterns • Enjoy support for VoiceOver and adaptable text sizes YOUR DATA, YOUR CHOICE Your records use the app’s private iCloud storage when iCloud is available and enabled. Photos are stored separately within the app’s storage on your device. Exports are created only when you choose to compose and share them. Whether you’re keeping a personal record, looking for patterns, or preparing useful information for a conversation with your doctor, OopsieWhoopsie gives you a clear and approachable place to track it all. OopsieWhoopsie is intended for personal tracking and record-keeping only. It does not provide medical advice, diagnosis, or treatment. Contact a qualified healthcare professional if you are concerned about your symptoms.

Screenshots

S.Tool4 screens
OopsieWhoopsie4 screens

Verdict

The call

The clearest difference is price: S.Tool at Free against OopsieWhoopsie's $1.99. S.Tool also leads on update cadence (every 2 months vs every 19 months) and iOS requirement (15.1 vs 18.0). On ads, in-app purchases and device support 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

S.Tool is free to download; OopsieWhoopsie costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

S.Tool ships an update every 2 months, OopsieWhoopsie every 19 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 3 level
S.Tool versus OopsieWhoopsie: the parameters behind the verdict, then further details
ParameterS.ToolOopsieWhoopsie
PriceFree — better$1.99
Update frequencyEvery 2 months — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size66 MB10 MB
Age rating12+4+
DeveloperKatholieke Universiteit te Leuvenmysteryfiles.nl

In-app purchases

None

S.Tool

No in-app purchases

None

OopsieWhoopsie

No in-app purchases

Questions

Is S.Tool free?
S.Tool is free to download, with no in-app purchases.
Is OopsieWhoopsie free?
OopsieWhoopsie costs $1.99, with no in-app purchases.
Do S.Tool or OopsieWhoopsie have ads?
Neither S.Tool nor OopsieWhoopsie shows ads.
Which is updated more often, S.Tool or OopsieWhoopsie?
S.Tool ships an update every 2 months, and OopsieWhoopsie every 19 months. Most recently, S.Tool was updated on October 7, 2026 and OopsieWhoopsie on October 1, 2026.

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