To do this thing the best we need as many information as possible about what it has to be loaded on the new mobile application (it's good to know about what structure / menu you are thinking about, it's good to know as many of the text and images before giving the order, it's good to tell us if the application is dedicated for Google, Apple or both). You can't make the order without filling in the phone number or the email address, they are necessary if we need to to clear some things and to deliver the best way the mobile application or if the access to the server where to upload the application on is missing).
On Google Play server you can upload the application in our account if you don't hae account there but we don't upload the application in Apple store. If you want to upload it in Apple ecosystem you will have to do it yourself or you cand find someone else.
The price for the mobile application starts with 100 euros but if it contain too many things and if it requires too much time the price can rise. It should be ready in a few days and the developer will estimate exactly how many days.