-- Redesign an IOS App - Expert wanted -- - -- 2

Hello Freelancer, ios app needs redesign as we are adding some new features. need Flat design. what you need to know" SKetch design tool preferably. (.sketch files) how many pages needs re-design: If I am not wrong, about 15 No sample bids. I am willing to pay $10 per screen ---- 15 or above screens . Please mention your rate expectation in the bid per screen as well. Thank You