The しこくスマートえきちゃん - JR四国チケットアプリ is a free Android app developed by 四国旅客鉄道株式会社. It falls under the category of Travel & Navigation and specifically the subcategory of Maps & GPS. This app offers a range of services and features to make your train travel in the JR四国 area more convenient.

One of the main features of this app is the ability to purchase tickets. You can buy tickets for any desired section within the JR四国 area, excluding the Kojima Station. The available ticket types include one-way regular tickets, free-seating express tickets, and monthly commuter tickets for 1, 3, and 6 months. The app also provides information on the eligible sections for each ticket type, including inter-station travel within the JR四国 area and travel between JR四国 stations and the Tosa Kuroshio Railway stations.

Additionally, the app offers the option to purchase discounted tickets, such as bundled one-way tickets with free-seating express tickets or all-you-can-ride round-trip tickets for the entire JR四国 network. The app also allows you to directly use the digital ticket screen as proof of purchase, eliminating the need for physical tickets.

Furthermore, the app features a proxy purchasing function. By linking accounts between users, you can purchase tickets on behalf of others using your own app.

Lastly, the app includes a "My Station" feature, which provides quick access to timetables and train location information for your frequently used stations.

Overall, the しこくスマートえきちゃん - JR四国チケットアプリ is a convenient and user-friendly app for purchasing tickets and accessing train-related information in the JR四国 area.