Mobile App QA Testing

I need a seasoned QA tester to put my consumer-facing app through its paces on both iOS and Android. The build is stable, but before launch I want fresh eyes on the experience and solid evidence that everything works as intended... (Budget: $15 - $25 USD, Jobs: Accessibility Testing, Android, API Testing, iOS, Mobile App Development, Mobile App Testing, Testing / QA, Usability Testing)