Onaka Log

"What's your gut type?" Find out with a 3-min self-check. Log bowel movements, meals, and symptoms in just 10 seconds.

Onaka Log is a self-care app for those who deal with IBS (Irritable Bowel Syndrome) and daily stomach discomfort. Log your bowel movements, meals, hydration, and physical condition in just about 10 seconds, and gently review your daily patterns.

[ What You Can Do with This App ]

■ 10-Second Logging

• One-tap bowel movement logging using the Bristol Stool Scale
• Meal logging with text and automatic FODMAP tag matching
• Quick hydration input in "ml", with one-tap presets for frequently used amounts
• Quickly note abdominal pain (5 levels), bloating, stress, and sleep
• Register frequently used medications as favorites for one-tap logging anytime

■ FODMAP Dictionary

• FODMAP classifications specialized for Japanese ingredients
• Includes classic Japanese foods like natto, miso, udon, and apples
• Gently supports you when you "don't know what's safe to eat"

■ Trend Review

• Displays correlations between meals/symptoms and stress/symptoms as reference information
• Compile a week's worth of records into a PDF to share with your doctor
• Helps resolve the issue of "not being able to explain well during a consultation"

■ Behavioral Experiment Notes

• Test out assumptions like "I absolutely can't do..." safely on a small, low-risk scale
• Compare predictions with results and treat your gut's habits as observational data
• A space to record insights, rather than focusing on success or failure

■ SOS Breathing

• Box breathing (4-4-4-4) for sudden stomach pain on the train or during a meeting
• A self-care tool to help you regain your calm

■ Privacy-Focused

• Records are primarily saved on your local device
• Can be used without account registration
• Your health records will not be shared for advertising purposes

[ Recommended for Those Who: ]

• Have persistent stomach discomfort but feel it doesn't warrant a doctor's visit yet
• Have been diagnosed with IBS and want to know how to manage it daily
• Worry about stomach aches during commutes or meetings
• Want to figure out which foods trigger their symptoms
• Struggle with alternating diarrhea and constipation
• Want to compile their records before visiting a doctor

[ Important Notice ]

• Sources for medical and health reference information can be found in "Settings" > "References/Sources" within the app (also accessible from footnotes on each screen).
• This app is not a medical device intended for diagnosis, treatment, or prescription.
• The trends and information displayed are for reference only and do not constitute a diagnosis.
• If you experience bloody stools, high fever, rapid weight loss, or severe dehydration, please prioritize consulting a medical institution over relying on the app.
• The content of this app does not replace the professional judgment of doctors, pharmacists, or registered dietitians.
• The free plan requires an internet connection when saving records (records cannot be saved until ad playback is complete. Ads are shown at most once every 3 hours). If you wish to save offline, please use Onaka Log Plus.

[ Support ] For feedback or bug reports, please contact us via the support page.

[ About Subscriptions ] Onaka Log Plus is an optional auto-renewing monthly subscription that hides ads displayed after saving records and allows you to save records offline. Please check the in-app purchase screen or the App Store's subscription section for pricing and duration. Payment will be charged to your Apple ID, and the subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can cancel anytime from the in-app subscription management or by going to "Settings" > "Apple ID" > "Subscriptions" on your iPhone.

Terms of Service: https://onaka-log.electoria.jp/terms/ Privacy Policy: https://onaka-log.electoria.jp/privacy/