What's a grand iOS app for getting around China, especially if you don't speak Mandarin?

Honestly, 百度 Maps saved my bacon when I was backpacking through China. Trying to navigate Shanghai without it would've been a nightmare! The offline maps are brilliant, so you don't need to worry about data roaming charges, which is always a bonus. Plus, it works a treat even in the more rural areas, like when I was trying to find a tiny tea house in the mountains. The real-time public transport info is spot on too – sorted me out more than once when the buses were running late. It's become an essential bit of kit for any trip to China, especially if you're linguistically challenged like yours truly!