Only the current version so far — new entries appear as the app ships updates.
STAMPRY(スタンプリー) is an events app by B-BREAKS Inc. with 50+ downloads (about 72 estimated). +2 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Enjoy your travels and cities even more with this stamp rally app! Visit spots and collect stamps! Collect, record, and rank up!”