Corrosion Djinn is a technical application that helps engineers and designers to compare and assess between various coatings and treatment materials for corrosion risks. The common knowledge is that potential differences bring about corrosion, but, in reality, galvanic current determines corrosion rate. The revolutionary app uses the reliable curve-crossing technique to assess, as galvanic tables are outdated and static. The app utilizes a high quality modern database of electrochemical data with the updated materials in the market. Our key contribution is the intuitive UX/UI with user friendly feature to utilize the app efficiently.