Explore Shanghai is a subway map application that was recommended by CNN and Lonely Planet. The app is designed for travelers who want to explore Shanghai without getting lost. It's up-to-date with all the metro lines and works offline. The app offers a route planner, GPS, street maps, and both English and Chinese languages.

The app is free to download and use, but it's ad-supported. If you want to get extra features, remove ads, and support future development, you can upgrade to VIP. The app is fully up-to-date, including every station on every line. It has been fully redesigned for the latest iOS devices, including the iPad. It also features street maps for every station, a route planner, and the ability to find the nearest station using your GPS.

The app works offline, so you can search stations and plan routes on the go. Upgrading to VIP helps support future development, and VIP users get additional features like no ads, accurate prices for every journey, first/last train times, offline street maps, tips at every station, and a warm fuzzy feeling.