The Keto Diet App － Carb Tracker by FJOR NUTRITION, INC. positions itself as an all-in-one solution for individuals following ketogenic diets, combining macro tracking with educational resources and meal planning. Available exclusively on iOS, the application aims to simplify the complex process of maintaining ketosis through technological integration and personalized data analysis. The application's core functionality revolves around its automated macro calculator, which generates personalized nutrition targets based on user-input parameters including weight, height, activity level, and weight goals. The food tracking system employs multiple input methods: traditional text search, barcode scanning for packaged foods, and voice recognition for hands-free operation. The database contains extensive nutritional information, though some regional or specialty items may require manual entry. Additional features include hundreds of curated keto recipes with complete nutritional breakdowns and meal planning capabilities that sync with tracking functionality. User experience demonstrates thoughtful design with a clean, intuitive interface that prioritizes daily macro progress visualization. The dashboard provides immediate feedback on carbohydrate intake, fat consumption, and protein levels through color-coded progress rings. Real-world usage patterns show most users engage primarily with the tracking features during meal times, while recipe browsing and meal planning occur during preparatory phases. The application maintains historical data for trend analysis, allowing users to correlate dietary patterns with weight changes over time. With a 4.68/5 rating based on extensive user feedback, the application receives consistent praise for its comprehensive database and accurate tracking capabilities. Reviewers frequently highlight the barcode scanner's reliability and the recipe variety as standout features. Some users note occasional synchronization issues between meal planning and tracking modules, though these appear resolved in recent updates. The voice recognition feature receives mixed feedback regarding accuracy with non-standard food names or accents. The application excels in providing structured guidance for keto diet adherence through technological simplification of complex nutritional calculations. Its main limitations include occasional database gaps for international foods and reliance on consistent user input for accurate tracking. Ideal for individuals committed to ketogenic diets who value data-driven approaches to nutrition, though less suitable for those seeking more generalized diet tracking or minimal manual input requirements.