高速道路料金マップ is an Android app developed by ASTONWORKS that allows users to calculate tolls for expressways, urban expressways, and major toll roads in Japan. The app offers multiple ways to input the departure point and destination, including voice input, alphabetical order, and route selection. Additionally, the app keeps a history of previously searched interchange names for easy access.

One of the standout features of 高速道路料金マップ is the ability to select interchanges directly from the map. However, it is important to note that the app may have difficulty distinguishing between full and half interchanges, which could result in incorrect route calculations or unnatural roundabout routes. In such cases, selecting another interchange nearby should provide the correct route.

Furthermore, the app provides information on both regular charges and discounted charges for using the ETC card. It also takes into account the departure date and time to display the estimated travel time considering traffic jam forecasts.

With its comprehensive toll calculation capabilities and user-friendly interface, 高速道路料金マップ is a valuable tool for anyone traveling on Japanese expressways.