Create a Perfect UX form to a mobile app

We have a mobile app already in google play. After the user installs the mobile app on his device he needs to create an account by filling up a form. Currently our form is not good enough. I'm looking for a real UX expert to make the perfect form for our mobile. In general we need to collect the following fields => full name, email, phone number. What i was thinking is to split the form to a few parts, start from asking for the user email address then the user clicks submit and then replacing the email field in the best UX kind of way with the full name and phone number fields and the user clicks submit and his account is generated. Pls show examples of previous work and let me know if you have any questions.