Only the current version so far — new entries appear as the app ships updates.
NPC plus 駐車場検索・予約・スマホで料金精算 is a maps & navigation app by 日本パーキング株式会社 with 10,000+ downloads (about 10K estimated). +506 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “This is the official app for Nippon Parking (NPC24H). Search for parking spaces, make reservations, and pay parking fees all within the app. It's a convenient parking app where you can earn and use points.”