Hi this motiur i am interesting to do this work with this budget . I made few educational apps and games as well . such as scientific calculator with graph view, periodic table, various type of converter and so on. I am very responsible to my work, I am very confident about my work and also time conscious so I can provide your project within required time . Thanks
Note: you can visit app store to see my project.
Project name: "Calculators With Unit Converter"