CRJ-700/900 Type Rating Prep by Aircraft Apps for Android!
Only the current version so far — new entries appear as the app ships updates.
CRJ-700/900 Pilot Study App is an education app by Aircraft Apps LLC with 10+ downloads (about 13 estimated). Released Jul 8, 2023. Install growth, rank history, SDKs and ad networks.
From the store listing: “CRJ-700/900 Flashcards, Quizzes, Memory Items, Aircraft Files, Panels, & Notes.”