Dr. Mix is a professional concrete mix design application developed for civil engineers, QC engineers, batching plant operators, and precast factories. The app supports concrete mix design up to 60 MPa with automatic calculations based on engineering standards and practical site data. Key Features: • Concrete mix design up to 60 MPa • Supports slump and flowable concrete • Automatic calculation of cement, water, admixtures, Fly Ash, Microsilica, and GGBS • Automatic water–cement ratio calculation • Accurate batch quantities per cubic meter • Built-in engineering data and warning system for incorrect inputs • Final mix summary with printable PDF report • Designed to replace complex Excel mix design sheets Dr. Mix helps engineers save time, reduce errors, and standardize concrete mix design in batching plants and construction projects.