Offline iOS Budget App Development

I need a clean, fully-offline budget app built for iOS that users can download, open, and start using immediately—no sign-up screens or bank connections, yet all their data must remain safely stored each time they relaunch the app... (Budget: $250 - $750 USD, Jobs: App Development, App Store Optimization, iOS Development, iPhone, Mobile App Development, Objective C, Swift, Xcode)