I already have a working mobile app and the core functionality is in place, but it still needs a professional polish before I push it live. I’m looking for someone who can refresh the overall design and, at the same time, hunt down the crashes and sluggish spots that still surface in testing. Here’s what I’d like delivered: • A cleaner, more consistent UI—updated layouts, typography, icons, and color treatments that fit the current brand style. • Fixes for the crashes and errors I’m logging, plus a performance pass to remove any noticeable slowdowns or memory leaks. • A build that compiles cleanly, passes QA on both iOS and Android (or the single platform we agree on), and is ready for store submission. You’ll get full access to the code repository, crash reports, and performance metrics. I’ll be testing each milestone on real devices, so incremental builds and clear commit messages are important. When you respond, focus on your experience with app UI redesigns and debugging—links to similar projects or a brief rundown of the toughest stability problems you’ve solved will help me gauge fit. I’m aiming for a quick turnaround but want the work done right; we can set milestones that keep us both on track.