Today, I would like to introduce one application named as Hyperdia, provided by Hitachi System, Inc. It offers the route and the timetable of the railway and the aviation of Japan, even support the search by voice in English.
This easy-to-use Japan train app is a godsend to foreign travelers and is free for the first 30 days. After free duration, it is required to buy coupon for monthly or yearly charge in the price list as below.
Japanese only (monthly): 240 Yen
Japanese and English (monthly): 360 Yen
Japanese only (yearly): 2000 Yen
Japanese and English (yearly): 3100 Yen
There is no way to change language interface directly in APP unless you change the language setting in your phone.
In its official website, it can provide both English and Chinese support for search in free of charge.