日本百名山データ is an Android app developed by Mejiro Publications. This free application provides a comprehensive overview of all the mountains listed in the "日本百名山" (Hundred Famous Mountains of Japan) selection made by Hisaya Fukuda. The app allows users to access various data and information about each mountain, including maps and sunrise/sunset times.

While it does not serve as a guidebook for those who wish to climb the hundred famous mountains, it is a valuable resource for both avid climbers and general enthusiasts who are interested in learning about these iconic peaks and deepening their knowledge. The app also includes additional data on Japan's two hundred famous mountains, three hundred famous mountains, one hundred famous mountain passes, and a selection of famous peaks from around the world, providing a wealth of reading material and insights.

As a bonus feature, users can send location points to car navigation systems using the Denso NaviCon app.

For those who find the advertisements intrusive, there is a paid ad-free version available for 160 yen.