TripAdvisor's mobile team spent all of 2016 redesigning the suite of native mobile applications on Android, iPhone and iPad. We divided the project into three phases: 1) a navigation overhaul; 2) a revamped home screen experience, which we called "Discovery"; and 3) a totally new design language and style guide to tie everything together.
Check out these case studies for more detail on each phase:
Phase 1: Navigation →
Phase 2: Discovery →
Phase 3: Design Language & Style Guide →