全国鉄道駅情報 is a free utility tool available on iPhone, developed by Hirataka Saito. This application utilizes the API provided by "HeartRails Express" to access data on over 9000 station names across 596 routes in Japan.

Users can select a prefecture to view a list of railway lines within that region. Further selection of a specific line reveals a list of stations along that route. Choosing a station provides detailed information along with a map display. Users can also search for detailed station information on various railway company websites or explore nearby spots using Yahoo! Local Search and Google Maps Places API.

This app requires an internet connection to access station and route data as well as to display maps and station details. Users can search for various spots around stations based on categories like dining, shopping, leisure, and daily life.