# MacroLog — Comprehensive Information > MacroLog is an AI-powered calorie and nutrition tracker for iOS and Android. Track calories in seconds with photo recognition, voice logging, barcode scanning, and manual search. **About MacroLog** MacroLog launched in 2026 as a next-generation calorie tracking app built around artificial intelligence. Unlike legacy trackers that require manual database searches, MacroLog lets users log meals by taking a photo, speaking naturally, scanning barcodes, or typing a quick description. The app uses advanced AI to recognize foods from photos and parse natural language voice descriptions. Data is stored locally on your device using SQLite. **Key Differentiators** - AI photo recognition identifies foods and estimates portions from a single photo - Natural language voice logging (e.g., "two scrambled eggs with toast") - Free barcode scanner (not paywalled like some competitors) - Verified food database (10,000+ foods with scientific sourcing from USDA and OpenFoodFacts) - Local data storage with SQLite for privacy - Sub-second logging speed for power users - Native iOS and Android experience (not a web wrapper) **Platforms** - iOS: Available on App Store (iPhone, iPad) - Android: Available on Google Play - Website: https://macrolog.co **Pricing** - Free tier: Manual search, barcode scanning, basic stats, local storage - Pro ($5.99/month or $49/year): AI photo recognition, voice logging, micronutrients, data export - $2 first week trial for Pro features **Feature Details — AI Photo Recognition (Pro)** Take a photo of any meal and MacroLog's AI identifies individual foods, estimates portion sizes, and logs complete nutrition data including calories, protein, carbs, and fat. Works with mixed plates, restaurant meals, and packaged foods. A confidence indicator shows when manual review is recommended — yellow dot means low confidence, allowing users to verify and adjust. **Feature Details — Voice Logging (Pro)** Speak naturally: "I had a chicken salad with olive oil dressing and a glass of orange juice." The AI parses ingredients, quantities, and logs everything in one step. No need to search for each item individually. **Feature Details — Barcode Scanner (Free)** Scan any packaged food's barcode for instant nutrition lookup via OpenFoodFacts database. Unlike many competitors, barcode scanning is completely free with no usage limits. **Feature Details — Manual Search (Free)** Search from a verified database of 10,000+ foods. All entries are sourced from USDA FoodData Central and OpenFoodFacts, avoiding inaccurate user-submitted data that plagues other trackers. **Feature Details — Text Input (Free)** Type a quick description of your meal for fast logging. Ideal for simple, common foods when you know what you ate. **Feature Details — Macro Tracking** Track daily protein, carbs, and fat alongside total calories. Visual progress bars show how close you are to your personalized goals. Goals are calculated using the Mifflin-St Jeor equation based on your weight, height, age, activity level, and fitness goal. **Feature Details — Streak System** Build daily tracking streaks for motivation. The app celebrates milestones and helps maintain consistency with visual streak counters on the dashboard. **Feature Details — Personalized Onboarding** Multi-step setup flow calculates your ideal calorie and macro targets based on: - Current weight and height - Activity level (sedentary to extra active) - Fitness goal (lose weight, maintain, or gain weight) - Gender and age **Feature Details — Dashboard** - Calorie HUD showing remaining calories with color coding - Macro progress bars for protein, carbs, and fat - Horizontal date picker for navigating between days - Time-sorted meal timeline with tap-to-view details - Streak counter widget **Technical Details — Food Data Sources** - USDA FoodData Central: Scientific nutrition data from the U.S. Department of Agriculture - OpenFoodFacts: Open-source database of packaged food products with barcode data - All entries validated for accuracy (calories > 0, macro totals consistent) **Technical Details — AI Model** - Advanced AI for photo recognition and voice parsing - Confidence scoring system to flag uncertain identifications - Works with single items, mixed plates, restaurant meals, and packaged foods **Technical Details — Architecture** - Flutter framework for native iOS and Android from a single codebase - Local SQLite database for data storage and privacy - AI features powered by advanced cloud-based models **FAQ** Q: Is MacroLog free? A: Yes, MacroLog offers a generous free tier with manual search, barcode scanning, macro tracking, streak system, and local storage. Pro features (AI photo recognition, voice logging, micronutrients, data export) cost $5.99/month or $49/year. Q: How accurate is MacroLog's AI photo recognition? A: MacroLog uses advanced AI for food recognition. For clearly visible single-food items, accuracy is high. For mixed meals, the AI provides estimates that users can adjust. A confidence indicator shows when manual review is recommended. Q: Does MacroLog require internet? A: Yes, MacroLog requires an internet connection for full functionality. Your data is stored locally on your device using SQLite for privacy. Q: What food database does MacroLog use? A: MacroLog uses verified data from USDA FoodData Central and OpenFoodFacts. Unlike apps with user-submitted databases, MacroLog's entries are scientifically sourced to minimize inaccuracies. Q: Is MacroLog available on Android? A: Yes, MacroLog is available on both iOS (App Store) and Android (Google Play). Q: How does MacroLog calculate my calorie goal? A: MacroLog uses the Mifflin-St Jeor equation, which accounts for your weight, height, age, gender, and activity level to determine your Basal Metabolic Rate (BMR). It then applies an activity multiplier for your Total Daily Energy Expenditure (TDEE) and adjusts based on your goal (deficit for weight loss, surplus for muscle gain). Q: How does MacroLog compare to MyFitnessPal? A: MacroLog focuses on AI-powered speed (photo/voice logging) with a verified database. MyFitnessPal has a larger but less accurate user-submitted database and a more traditional manual search interface. See full comparison: https://macrolog.co/blog/macrolog-vs-myfitnesspal Q: Can I scan barcodes for free? A: Yes, barcode scanning is completely free in MacroLog with no usage limits. Many competing apps paywall this feature. Q: How fast is MacroLog for logging meals? A: MacroLog is designed for sub-second logging. With AI photo recognition, you can log an entire meal in one tap. Voice logging lets you describe multiple items at once. Even manual search is optimized for speed with recent foods cache and smart suggestions. Q: Does MacroLog track micronutrients? A: The food database pages on the website show full vitamin and mineral profiles. In-app micronutrient tracking is available as a Pro feature. Q: Is my data private? A: All food logging data is stored locally on your device. MacroLog does not sell user data. See the full privacy policy: https://macrolog.co/privacy Q: What languages does MacroLog support? A: MacroLog supports English and Polish, with more languages planned. **Food Database** 470 foods with complete nutrition facts. Each food page includes: calories, protein, carbs, fat, fiber, vitamins, and minerals per 100g with interactive serving size calculators. **Blog & Guides** 105 articles covering nutrition science, calorie tracking, macros, weight management, AI technology, and practical tips. ## Calorie Calculators - [All Calculators](https://macrolog.co/calculators/): 30 free online calculators, no sign-up required - [Calorie Calculator](https://macrolog.co/calculators/calorie-calculator) - [TDEE Calculator](https://macrolog.co/calculators/tdee-calculator) - [BMR Calculator](https://macrolog.co/calculators/bmr-calculator) - [Macro Calculator](https://macrolog.co/calculators/macro-calculator) - [Protein Calculator](https://macrolog.co/calculators/protein-calculator) - [Body Fat Calculator](https://macrolog.co/calculators/body-fat-calculator) - [Calorie Deficit Calculator](https://macrolog.co/calculators/calorie-deficit-calculator) - [BMI Calculator](https://macrolog.co/calculators/bmi-calculator) - [Ideal Weight Calculator](https://macrolog.co/calculators/ideal-weight-calculator) - [Weight Loss Calculator](https://macrolog.co/calculators/weight-loss-calculator) - [Carb Calculator](https://macrolog.co/calculators/carb-calculator) - [Water Intake Calculator](https://macrolog.co/calculators/water-intake-calculator) - [Calories Burned Calculator](https://macrolog.co/calculators/calories-burned-calculator) - [Lean Body Mass Calculator](https://macrolog.co/calculators/lean-body-mass-calculator) - [Waist to Hip Ratio Calculator](https://macrolog.co/calculators/waist-to-hip-ratio-calculator) - [One Rep Max Calculator](https://macrolog.co/calculators/one-rep-max-calculator) - [Keto Calculator](https://macrolog.co/calculators/keto-calculator) - [Intermittent Fasting Calculator](https://macrolog.co/calculators/intermittent-fasting-calculator) - [Net Carbs Calculator](https://macrolog.co/calculators/net-carbs-calculator) - [Alcohol Calorie Calculator](https://macrolog.co/calculators/alcohol-calorie-calculator) - [Meal Prep Calculator](https://macrolog.co/calculators/meal-prep-calculator) - [Cheat Day Calculator](https://macrolog.co/calculators/cheat-day-calculator) - [Reverse Dieting Calculator](https://macrolog.co/calculators/reverse-dieting-calculator) - [Sugar Intake Calculator](https://macrolog.co/calculators/sugar-intake-calculator) - [Pregnancy Calorie Calculator](https://macrolog.co/calculators/pregnancy-calorie-calculator) - [Recipe Calorie Calculator](https://macrolog.co/calculators/recipe-calorie-calculator) - [GLP-1 Protein Calculator](https://macrolog.co/calculators/glp1-protein-calculator): Protein target while on Ozempic, Wegovy or Mounjaro - [GLP-1 Maintenance Calculator](https://macrolog.co/calculators/glp1-maintenance-calculator): Calorie target after stopping a GLP-1 ## App Comparisons - [Compare Hub](https://macrolog.co/compare/): Detailed, fair comparisons with other calorie tracking apps - [MacroLog vs MyFitnessPal](https://macrolog.co/blog/macrolog-vs-myfitnesspal): AI speed and verified data vs the world's largest (but unverified) food database - [MacroLog vs Lose It](https://macrolog.co/blog/macrolog-vs-lose-it): AI photo logging vs community-driven weight loss focus - [MacroLog vs Cronometer](https://macrolog.co/blog/macrolog-vs-cronometer): Fast macro tracking vs clinical-grade micronutrient detail (82 nutrients) - [MacroLog vs FatSecret](https://macrolog.co/blog/macrolog-vs-fatsecret): AI convenience vs a fully free tracker with no paywalls - [MacroLog vs YAZIO](https://macrolog.co/blog/macrolog-vs-yazio): AI tracking vs Europe's top diet companion with fasting timer - [MacroLog vs Samsung Health](https://macrolog.co/blog/macrolog-vs-samsung-health): Dedicated nutrition tracker vs built-in wellness ecosystem - [MacroLog vs MacroFactor](https://macrolog.co/blog/macrolog-vs-macrofactor): AI logging speed vs adaptive TDEE algorithm coaching - [MacroLog vs Noom](https://macrolog.co/blog/macrolog-vs-noom): Focused calorie tracker vs behavior change psychology program - [MacroLog vs Lifesum](https://macrolog.co/blog/macrolog-vs-lifesum): AI-powered tracking vs holistic diet and meal planning - [MacroLog vs Cal AI](https://macrolog.co/blog/macrolog-vs-cal-ai): Two AI-first trackers compared on accuracy, speed, and value - [MacroLog vs Foodvisor](https://macrolog.co/blog/macrolog-vs-foodvisor): AI photo recognition approaches and accuracy compared - [MacroLog vs MyMacros+](https://macrolog.co/blog/macrolog-vs-mymacros-plus): AI speed vs bodybuilder-focused simplicity - [MacroLog vs Apple Health](https://macrolog.co/blog/macrolog-vs-apple-health): Dedicated tracker vs ecosystem health data aggregator - [MacroLog vs Carb Manager](https://macrolog.co/blog/macrolog-vs-carb-manager): General macro tracking vs keto and low-carb specialist - [Best Calorie Tracking Apps in 2026](https://macrolog.co/blog/best-calorie-tracking-apps-2026) ## Food Database - [All Foods](https://macrolog.co/calories-in/): 470 foods with complete nutrition facts - [Chicken Breast](https://macrolog.co/calories-in/chicken-breast) - [White Rice](https://macrolog.co/calories-in/white-rice) - [Avocado](https://macrolog.co/calories-in/avocado) - [Banana](https://macrolog.co/calories-in/banana) - [Egg](https://macrolog.co/calories-in/egg) - [Salmon](https://macrolog.co/calories-in/salmon) - [Oatmeal](https://macrolog.co/calories-in/oatmeal) - [Apple](https://macrolog.co/calories-in/apple) - [Pizza](https://macrolog.co/calories-in/pizza) - [Greek Yogurt](https://macrolog.co/calories-in/greek-yogurt) - [Pasta](https://macrolog.co/calories-in/pasta) - [Sweet Potato](https://macrolog.co/calories-in/sweet-potato) - [Almonds](https://macrolog.co/calories-in/almonds) - [Quinoa](https://macrolog.co/calories-in/quinoa) - [Broccoli](https://macrolog.co/calories-in/broccoli) ## Essential Guides - [Blog Index](https://macrolog.co/blog/): 105 articles on nutrition science and calorie tracking - [How to Count Calories](https://macrolog.co/blog/how-to-count-calories) - [What Are Macros — Complete Guide](https://macrolog.co/blog/what-are-macros-guide) - [Understanding TDEE](https://macrolog.co/blog/bmr-vs-tdee-difference) - [Calorie Deficit Explained](https://macrolog.co/blog/what-is-calorie-deficit) - [Body Recomposition Guide](https://macrolog.co/blog/body-recomposition-guide) - [Meal Prep for Beginners](https://macrolog.co/blog/meal-prep-beginners-guide) - [How to Count Macros](https://macrolog.co/blog/how-to-count-macros) - [BMR vs TDEE Difference](https://macrolog.co/blog/bmr-vs-tdee-difference) - [How Many Calories Per Day](https://macrolog.co/blog/how-many-calories-per-day) - [Track Calories Without Obsession](https://macrolog.co/blog/track-calories-without-obsession) - [Mifflin-St Jeor Equation Explained](https://macrolog.co/blog/mifflin-st-jeor-equation-explained) - [Flexible Dieting (IIFYM) Guide](https://macrolog.co/blog/flexible-dieting-iifym-guide) - [Reverse Dieting Explained](https://macrolog.co/blog/reverse-dieting-explained) ## Protein & Macros - [How Much Protein Per Day](https://macrolog.co/blog/how-much-protein-per-day) - [Best High Protein Foods](https://macrolog.co/blog/best-high-protein-foods) - [Best Macro Split for Weight Loss](https://macrolog.co/blog/best-macro-split-weight-loss) - [Macro Split for Muscle Gain](https://macrolog.co/blog/macro-split-muscle-gain) - [How Many Carbs Per Day](https://macrolog.co/blog/how-many-carbs-per-day) - [How Much Fat Per Day](https://macrolog.co/blog/how-much-fat-per-day) - [Does Protein Timing Matter](https://macrolog.co/blog/does-protein-timing-matter) - [Complete vs Incomplete Proteins](https://macrolog.co/blog/complete-vs-incomplete-proteins) - [How Fiber Affects Macros](https://macrolog.co/blog/how-fiber-affects-macros) ## Weight Management - [How to Lose the Last 5 kg](https://macrolog.co/blog/how-to-lose-last-5-kg) - [Break Weight Loss Plateau](https://macrolog.co/blog/break-weight-loss-plateau) - [Lose Weight Without Starving](https://macrolog.co/blog/lose-weight-without-starving) - [Maintain Weight After Diet](https://macrolog.co/blog/maintain-weight-after-diet) - [Why the Scale Lies — Water Weight](https://macrolog.co/blog/why-scale-lies-water-weight) - [Speed Up Metabolism](https://macrolog.co/blog/speed-up-metabolism) - [Is 1200 Calories Enough](https://macrolog.co/blog/is-1200-calories-enough) - [Calorie Tracking and Weight Loss Science](https://macrolog.co/blog/calorie-tracking-weight-loss-science) - [Mini Cuts and Mini Bulks Guide](https://macrolog.co/blog/mini-cuts-mini-bulks-guide) ## GLP-1 Nutrition - [GLP-1 Diet](https://macrolog.co/blog/glp-1-diet): What to eat on Ozempic, Wegovy and Mounjaro - [How Much Protein on a GLP-1](https://macrolog.co/blog/how-much-protein-on-glp-1) - [GLP-1 Muscle Loss](https://macrolog.co/blog/glp-1-muscle-loss): How to tell and how to stop it - [GLP-1 Food List](https://macrolog.co/blog/glp-1-food-list) - [Keeping Weight Off After a GLP-1](https://macrolog.co/blog/keeping-weight-off-after-glp1): What to eat and how many calories once you stop ## AI & Technology - [How AI Food Recognition Works](https://macrolog.co/blog/how-ai-food-recognition-works) - [AI vs Manual Calorie Tracking](https://macrolog.co/blog/ai-vs-manual-calorie-tracking) - [Voice Meal Tracking — Fastest Way to Log](https://macrolog.co/blog/voice-logging-fastest-meal-tracking) - [Barcode Scanning for Nutrition Tracking](https://macrolog.co/blog/barcode-scanning-nutrition-tracking) - [How AI Is Changing Nutrition Tracking](https://macrolog.co/blog/ai-changing-nutrition-tracking) - [Better AI Meal Photo Results](https://macrolog.co/blog/better-ai-meal-photo-results) - [Track Calories in Seconds](https://macrolog.co/blog/track-calories-in-seconds) ## Practical Tips - [Track Calories Eating Out](https://macrolog.co/blog/track-calories-eating-out) - [Count Calories in Homemade Meals](https://macrolog.co/blog/count-calories-homemade-meals) - [Estimate Portion Sizes Without a Scale](https://macrolog.co/blog/estimate-portion-sizes-without-scale) - [How to Read Nutrition Labels](https://macrolog.co/blog/how-to-read-nutrition-labels) - [Healthy Snacks Under 200 Calories](https://macrolog.co/blog/healthy-snacks-under-200-calories) - [High Protein Meal Prep Under 500 Calories](https://macrolog.co/blog/high-protein-meal-prep-500-calories) - [Quick High Protein Breakfast Ideas](https://macrolog.co/blog/quick-high-protein-breakfast) - [Budget High Protein Meals](https://macrolog.co/blog/budget-high-protein-meals) - [Calorie Tracking While Traveling](https://macrolog.co/blog/calorie-tracking-while-traveling) - [Holiday Eating Strategy](https://macrolog.co/blog/holiday-eating-strategy) ## Lifestyle & Special Topics - [Calorie Tracking for College Students](https://macrolog.co/blog/calorie-tracking-college-students) - [Calorie Tracking Over 40](https://macrolog.co/blog/calorie-tracking-over-40) - [Calorie Tracking for Shift Workers](https://macrolog.co/blog/calorie-tracking-shift-workers) - [Macro Tracking for Busy Parents](https://macrolog.co/blog/macro-tracking-busy-parents) - [Macro Tracking for Vegetarians and Vegans](https://macrolog.co/blog/macro-tracking-vegetarian-vegan) - [Women's Calorie Needs](https://macrolog.co/blog/womens-calorie-needs) - [Intermittent Fasting and Calorie Tracking](https://macrolog.co/blog/intermittent-fasting-calorie-tracking) - [Pre and Post Workout Nutrition](https://macrolog.co/blog/pre-post-workout-nutrition) - [Nutrition Guide for Runners](https://macrolog.co/blog/nutrition-guide-runners) - [Sleep and Weight Loss Connection](https://macrolog.co/blog/sleep-weight-loss-connection) - [Stress, Weight Gain, and Cortisol](https://macrolog.co/blog/stress-weight-gain-cortisol) - [Alcohol and Weight Loss](https://macrolog.co/blog/alcohol-weight-loss) - [Nutrition and Religious Fasting](https://macrolog.co/blog/nutrition-religious-fasting) ## Food Comparisons - [Chicken Breast vs Thigh](https://macrolog.co/blog/chicken-breast-vs-thigh) - [Rice vs Pasta](https://macrolog.co/blog/rice-vs-pasta-comparison) - [Greek vs Regular Yogurt](https://macrolog.co/blog/greek-vs-regular-yogurt) - [Banana vs Apple](https://macrolog.co/blog/banana-vs-apple-comparison) - [Oats vs Granola](https://macrolog.co/blog/oats-vs-granola) - [Whole Wheat vs White Bread](https://macrolog.co/blog/whole-wheat-vs-white-bread) ## Calories In Popular Foods - [Calories in Chicken](https://macrolog.co/blog/calories-in-chicken) - [Calories in Rice](https://macrolog.co/blog/calories-in-rice) - [Calories in Banana](https://macrolog.co/blog/calories-in-banana) - [Calories in Egg](https://macrolog.co/blog/calories-in-egg) - [Calories in Pizza](https://macrolog.co/blog/calories-in-pizza) - [Calories in Coffee](https://macrolog.co/blog/calories-in-coffee) - [Calories in Alcohol](https://macrolog.co/blog/calories-in-alcohol) - [Zero Calorie Foods](https://macrolog.co/blog/zero-calorie-foods) - [Most Calorie Dense Foods](https://macrolog.co/blog/most-calorie-dense-foods) ## Psychology & Habits - [Psychology of Food Tracking](https://macrolog.co/blog/psychology-food-tracking) - [Why People Quit Calorie Tracking](https://macrolog.co/blog/why-people-quit-calorie-tracking) - [Discipline vs Motivation in Tracking](https://macrolog.co/blog/discipline-vs-motivation-tracking) - [First 30 Days of Calorie Tracking](https://macrolog.co/blog/first-30-days-calorie-tracking) - [How Long Should You Track Calories](https://macrolog.co/blog/how-long-track-calories) - [Calorie Counting vs Intuitive Eating](https://macrolog.co/blog/calorie-counting-vs-intuitive-eating) - [Recover After Binge Eating](https://macrolog.co/blog/recover-after-binge-eating) - [80/20 Rule in Nutrition](https://macrolog.co/blog/80-20-rule-nutrition) - [Do Calories Really Matter](https://macrolog.co/blog/do-calories-really-matter) - [Why Your Calorie Count Is Wrong](https://macrolog.co/blog/why-your-calorie-count-is-wrong) ## Contact & Links - [Website](https://macrolog.co) - [Blog](https://macrolog.co/blog/) - [Compare Apps](https://macrolog.co/compare/) - [Food Database](https://macrolog.co/calories-in/) - [Calculators](https://macrolog.co/calculators/) - [FAQ](https://macrolog.co/faq) - [About](https://macrolog.co/about) - [Download for iOS](https://apps.apple.com/us/app/macrolog-calorie-tracker/id6757798666) - [Download for Android](https://play.google.com/store/apps/details?id=com.calorie.tracker.app&referrer=utm_source%3Dmacrolog_web%26utm_medium%3Dorganic_web%26utm_campaign%3Dllms-full%26utm_content%3Dllms%26utm_term%3Den) - [Support](https://macrolog.co/support) - [Email](mailto:support@macrolog.co) - [Privacy Policy](https://macrolog.co/privacy) - [Terms of Service](https://macrolog.co/terms)