遍路のあかりプラス is a free travel and navigation app designed specifically for pilgrims visiting the sacred sites in Shikoku, Japan. It provides essential information about each temple, including access details, parking options, and nearby dining and sightseeing spots. The app is designed to enhance the pilgrimage experience by offering features like audio playback of sutras and notifications about events at the temples. Users can also contribute by posting their own tips and experiences, creating a community-driven map of Shikoku's attractions.

Key functionalities include a detailed introduction to each sacred site, a user-friendly map highlighting nearby temples, restaurants, and other points of interest, and an album feature for users to document their pilgrimage journey with photos and comments. Additionally, the app sends push notifications based on the user's location, providing timely information about nearby amenities. Overall, this app serves as a valuable resource for both seasoned pilgrims and newcomers alike.