The pinyin for Changping Dongguan is wrong. The map states it's 'Dongyuan', while in fact - it is 'Dongguan'. The Chinese name of the station is correct, only the pinyin is wrong.
I found that it is not possible to tap on any of the final stations at the top of the map of the Changping line as one’s destination — the red box indicating that you are planning a route lies on top of those stations... Please fix this.
I would find it useful to have a button for calling a taxi at current location and having on-screen instructions (for the driver) to reach the closest subway station.