Dianping is one of China's main local restaurant discovery and review platforms—the app many local diners use to compare ratings, recent photos, popular dishes and different branches. Think of it as the closest local equivalent to Yelp.
The current official iOS listing declares English support, and an English-language Google Play listing is available. Actual interface coverage, registration, reviews and download availability can vary by device, region, account and app version. Install and test it before departure; much of the local review content may still need translation.
There is no dependable separate English web edition; the links above point to the official app listings and the Chinese website.