Only the current version so far — new entries appear as the app ships updates.
UL Fragenkatalog (DULV) is an education app by flugbetrieb.com with 1,000+ downloads (about 1.2K estimated). +4 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Learn the SPL/UL theory with the official DULV questionnaire”