GutBrain vs Digest Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GutBrain
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GutBrain is your 10-second poop tracker, stool log, and bowel movement diary for Irritable Bowel Syndrome (IBS), chronic constipation, diarrhea, bloating, trapped gas, and stomach pain. Log your daily poop with the Bristol Stool Scale, analyze meals with AI photo recognition and our Low-FODMAP food guide, and track probiotics, stress, sleep, and skin on one unified gut health calendar. Struggling with IBS flare-ups, chronic constipation, sudden diarrhea, bloating after meals, acid reflux (GERD), or irregular bowel movements? Digestion reacts to specific foods, FODMAP triggers, hydration, sleep, hormones, and stress. Keeping a daily poop log and food diary helps you spot recurring gut triggers and bring a clean PDF report to your gastroenterologist (GI doctor) or dietitian. ■ WHY USERS CHOOSE GUTBRAIN POOP TRACKER • 10-Second Poop Tracker & Stool Log: tap a Bristol Stool Scale type (Types 1–7) to log bowel movements instantly • Complete IBS Symptom Tracker & Food Diary: track constipation, diarrhea, bloating, gas, cramps, nausea, and reflux • AI Meal Photo Scanner & Low-FODMAP Diet Guide: spot triggers like dairy, lactose, wheat, gluten, garlic, and onion • New Gut & Brain Custom Diary: write daily gut reflections and customize your own daily check-in questions • Calendar Bowel Trend Graphs: visualize stool frequency, Bristol consistency, and symptom trends below your monthly calendar • Gastroenterologist PDF Reports & CSV Export: share structured bowel and meal histories at your next GI doctor visit ■ CORE FEATURES FOR DIGESTIVE & GUT HEALTH 1. Bristol Stool Scale Poop Tracker & Bowel Movement Log • Record stool shape and consistency (Type 1 hard pellets to Type 7 liquid diarrhea), color, volume, urgency, straining, and incomplete evacuation in 10 seconds • Log multiple bowel movements per day, track constipation streaks, and note blood in stool or hemorrhoids • Color-coded monthly poop calendar and bowel trend charts to spot weekly and monthly digestive patterns 2. IBS Food Diary, AI Meal Log & Low-FODMAP Diet Tracker • Snap a photo of your plate or log meals, snacks, coffee, alcohol, and water in seconds • Cross-reference meals with post-meal bloating, trapped gas, stomach pain, indigestion, heartburn, or urgent diarrhea • Built-in Low-FODMAP food list supports elimination and reintroduction tracking for IBS, SIBO, celiac, or lactose intolerance 3. Probiotic, Fiber & Gut Supplement Tracker • Set daily reminders for probiotics, prebiotics, psyllium husk (fiber), digestive enzymes, L-glutamine, and magnesium • Compare Bristol stool scores and bloating frequency before and after starting a new probiotic 4. Gut-Brain Axis: Stress, Anxiety, Sleep & Hormonal Tracking • Track how work stress, anxiety, poor sleep, and the menstrual cycle ("period poop" and hormonal bloating) affect your gut • Customize the Gut & Brain Journal to log hydration, exercise, mindful eating, or medication notes 5. Gut-Skin Axis: Acne, Rosacea & Skin Flare-Up Diary • Track facial acne, breakouts, redness, and eczema alongside your bowel movement log 6. Home Screen Gut Weather Widget, AI Insights & 14-Day Challenges • Check your daily "Gut Weather" forecast and streak counter from your Home Screen widget • Build lasting habits—morning water, soluble fiber, regular meals—with 14-day gut health challenges ■ FREQUENTLY ASKED QUESTIONS (FAQ) Q. How fast is daily poop logging in GutBrain? A. About 10 seconds—tap a Bristol Stool Scale icon (Type 1–7), add symptom tags like bloating or cramps, and save. Q. Can I use GutBrain for IBS and the Low-FODMAP diet? A. Yes! GutBrain combines a Bristol stool log, IBS symptom tracker, AI meal diary, and Low-FODMAP guide so you can see how meals correlate with bloating, gas, constipation, or diarrhea. [Medical Disclaimer] GutBrain is a personal wellness tool for informational purposes only and does not provide medical diagnosis or treatment. Consult a physician or gastroenterologist for persistent symptoms.
Digest Diary
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Build a food and symptom record you can actually use. Digest Diary is a privacy-first journal for recording meals, digestive symptoms, bowel movements, timing, notes, and your own tags. Review everything in a neutral timeline that shows what you logged and when—without claiming that one thing caused another. RECORD • Log breakfast, lunch, dinner, snacks, and drinks • Track bloating, gas, pain, diarrhea, constipation, nausea, or a custom symptom • Record stool consistency from 1–7 and your own urgency observation • Add severity, duration, notes, and personal tags • Reuse recent foods, favorite meals, and recent tags REVIEW • See meals, symptoms, bowel movements, and private notes in one timeline • Browse history by date and filter by entry type or tag • Search and edit your entries at any time • Use an optional on-device daily reminder REPORT WITH PRO • Create professional PDF and CSV exports • Keep unlimited history • See descriptive counts and trends based only on your logged data • Use structured journal templates and premium themes PRIVATE BY DESIGN Your journal stays on your device. No account is required, usage analytics are off, and local features work without network access. Optional App Lock uses Face ID, Touch ID, or your device passcode. Export or restore a complete portable backup, or delete all journal data from Settings. Digest Diary is a record-keeping tool. It does not provide diagnosis, treatment, food ratings, or medical or dietary advice. Pro requires an in-app purchase. Choose a monthly or annual auto-renewable subscription, or a one-time lifetime purchase. Terms of Use: https://digestdiary.codemxm.com/terms/
Screenshots
Verdict
The clearest difference is in-app purchases: GutBrain at none against Digest Diary's 3. GutBrain also leads on iOS requirement (15.0 vs 17.0). On price, ads 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
Both are free to download. Digest Diary sells 3 in-app purchases, starting at $2.99 per month. GutBrain asks for nothing beyond the download.
| Parameter | GutBrain | Digest Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 61 MB | 16 MB |
| Age rating | 12+ | 4+ |
| Developer | HyunJun Moon | 德明 杨 |
In-app purchases
GutBrain
No in-app purchases
Digest Diary
- Digest Diary Pro Monthly$2.991 Month
- Digest Diary Pro Annual7 Days trial$19.991 Year
- Digest Diary Pro Lifetime$49.99









