Only the current version so far — new entries appear as the app ships updates.
Happenee is a productivity app by Happenee s.r.o. with 10,000+ downloads (about 12K estimated). +116 installs in the last 7 days. Released Jun 16, 2014. Install growth, rank history, SDKs and ad networks.
From the store listing: “Happenee — Always keep the important info about your upcoming events with you”