I have a calculator already developed with all the working HTML, CSS and JS. I wan't to "drop" that into the necessary code to create a working app for IOS and Android.
Let me know what other information you need. I can even provide you a link to the exact working calculator so you can see it in a mobile device "through" my Web site, or view it in any device. I'm a Web developer, so I've done 90% of the work. In appypie I simply dropped in my code and hit save, then had a working app.