3D地図 - オフライン地形&GPX軌跡 is a maps & navigation app by gacool with 100+ downloads (about 305 estimated). +299 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Peace of mind even in remote mountain areas without cell service! A 3D topographic map app that works completely offline. Supports GPX track import and 3D transparent display of landslide hazard maps.”