S.Tool vs OopsieWhoopsie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S.Tool
Read full descriptionHide 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.
OopsieWhoopsie
Read full descriptionHide 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
Verdict
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
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.
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.
| Parameter | S.Tool | OopsieWhoopsie |
|---|---|---|
| Price | Free — better | $1.99 |
| Update frequency | Every 2 months — better | Every 19 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 66 MB | 10 MB |
| Age rating | 12+ | 4+ |
| Developer | Katholieke Universiteit te Leuven | mysteryfiles.nl |
In-app purchases
S.Tool
No in-app purchases
OopsieWhoopsie
No in-app purchases




