Being an Apple user i do apologise beforehand being a bit biased on what to use. However, if you have an app you would like to share with others that you feel have made your life easier or more interesting - please let me know. Write me on: firstname.lastname@example.org
Maps: Apple´s preinstalled Maps app has proven to be a lifesaver for me. Being a bit geographically challenged I have a knack of getting myself lost in new places. Being a driver that is often not so amusing. Now, when using Maps i get around easily, whether it is in my car, on foot or by bus. The public transport part is easy to use, you find your destination (you can search in English) you just follow the map and you can change lines with ease. If you can not find the address - try our taxi cards :-)
WeChat: There is no way of getting around the usefullness of WeChat out here. You communicate, you keep informed, you pay for stuff and you buy stuff through it. I am sure there are still lots of things I have not yet learned about WeChat but so far I can recommend the following functions.