GutCode vs KcalCulator
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
GutCode
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GutCode is a gut health tracker for IBS, FODMAP, Crohn's, SIBO and celiac. Find your personal food triggers with AI food scanning, a Gut Score (0-100), and a correlation engine that connects meals to symptoms automatically. --- HOW IT WORKS --- Snap a photo of your meal. Our AI Vision identifies your food, calculates full nutrition, classifies FODMAP status, detects plant ingredients, and flags potential gut irritants, in seconds. No barcodes. No manual typing. After each meal, GutCode asks how you feel: energy, mental clarity, gut comfort. Our correlation engine then maps those symptoms back to meals across scientifically calibrated time windows; 4 hours for bloating and energy crashes, 24 hours for bowel symptoms, because your gut doesn't work on a simple clock. --- WHAT MAKES IT DIFFERENT --- Most food diaries just store data. GutCode analyzes it. - Variable biological windows (4 hr & 24 hr) matched to upper and lower GI physiology - Recency weighting; patterns from the last 2 weeks count 1.5x more than old ones - Diagnosis-aware engine - prioritizes triggers known to affect IBS, Crohn's, Celiac, SIBO, endometriosis, and ulcerative colitis specifically - Confidence-rated triggers: Early Pattern > Recurring > Frequent Pattern - Safe food discovery; ingredients you've eaten 3+ times without symptoms are marked green - Weekly AI-enhanced summaries that spot combination triggers and time-of-day patterns - Apple Health sync: correlates steps, sleep, HRV, and weight with gut wellbeing --- EVERYTHING YOU NEED --- - AI Food Scanner - photo to full nutrition in seconds - Barcode Scanner - 2M+ products via Open Food Facts - Gut Score - your daily gut health index (0-100) - Pattern Explorer - discover your personal trigger foods (Pro) - 30 Plants Challenge - track weekly plant diversity for microbiome health - Cycle Tracking - understand how your cycle affects your gut - Bristol Scale Stool Log - clinically structured bowel tracking - PDF Medical Reports - doctor-ready health summaries (Pro) - Home Screen Widget - your Gut Score always visible --- BUILT FOR YOUR DIAGNOSIS --- Whether you have IBS, Crohn's disease, ulcerative colitis, celiac disease, SIBO, or endometriosis. GutCode personalizes every insight from day one. Our onboarding captures your diagnosis, symptoms, and goals so the correlation engine knows which triggers matter most for your body. --- YOUR DATA IS YOURS --- All entries are stored locally on your device. HealthKit data never leaves your phone. GDPR-compliant. -------------------------------------------------- Free to start: 7-day trial with 3 daily AI scans + unlimited manual logging. Upgrade to Pro: unlimited scans, Pattern Explorer, cycle insights, PDF reports, and monthly gut story. --- SUBSCRIPTION INFO --- GutCode Pro is available as a monthly or yearly auto-renewing subscription. - Payment is charged to your Apple ID account at confirmation of purchase - Subscription automatically renews unless turned off at least 24 hours before the end of the current period - Your account will be charged for renewal within 24 hours prior to the end of the current period - You can manage or cancel subscriptions in Settings > Apple ID > Subscriptions - Any unused portion of a free trial will be forfeited when purchasing a subscription Privacy Policy: https://gutcode.app/privacy-policy Terms of Use: https://gutcode.app/terms-of-service
KcalCulator
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KcalCulator is a calm, beautiful way to track what you eat โ built to stay out of your way and keep your data on your device. SCAN LABELS WITH YOUR CAMERA Point the camera at any nutrition label (English or Spanish). On-device text recognition fills in calories, protein, carbs, fat and more โ no typing, no cloud. YOUR PANTRY, PHOTOGRAPHED Snap a product and Cal Culator cuts out the background automatically, turning your real food into the interface. Your most-used products live in a Frequent rail: logging a repeat meal is one tap. DISHES YOU ALWAYS MAKE Save a finished meal โ photo plus the exact amounts you always use. Add the whole dish to your day in one tap; every ingredient is logged with its own values. A DAY AT A GLANCE A goal ring, three macro beams and a short note show where you stand. The ledger groups your day by meal, in a warm, paper-like design with serif numerals. HISTORY THAT'S HONEST A month calendar shows how each day went: green when you landed near your goal, amber when you were close, red when you were far โ over or under. PRIVATE BY DESIGN No account. No ads. No analytics. No internet connection at all โ everything is computed and stored on your iPhone. App Privacy: Data Not Collected. Cal Culator estimates figures from the data you enter and is not a substitute for professional medical or nutritional advice.
Screenshots
Verdict
The clearest difference is in-app purchases: KcalCulator at none against GutCode's 2. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. GutCode sells 2 in-app purchases, starting at $9.99 per month. KcalCulator asks for nothing beyond the download.
| Parameter | GutCode | KcalCulator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | โ |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 29 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Hanish Ali Kose | Zertyn LLC |
In-app purchases
GutCode
- GutCode Pro Monthly3 Days trial$9.991 Month
- GutCode Pro Yearly1 Year trial$49.991 Year
KcalCulator
No in-app purchases









