PassCivic is an offline study app for the German naturalisation test ("Einbürgerungstest" / "Test Leben in Deutschland"). It contains all 460 questions of the official BAMF question catalogue (300 general questions plus 10 questions for each of the 16 federal states), a mock-test mode that mirrors the real exam format (33 questions, 60 minutes, 17 correct to pass), a practice mode with short explanations for every question written by us in German and Turkish, a mistake book, and topic statistics. The user selects their federal state so that three state questions appear in the mock test, exactly as in the real exam. IMPORTANT: the app is NOT an official app of the BAMF (Federal Office for Migration and Refugees) and is not affiliated with any government body; the store listing and the app itself say so. Question texts and the images used inside questions come from the official, freely published BAMF question catalogue (an official work, free of copyright under § 5 UrhG); the explanations are our own. Monetisation: a Premium subscription (weekly, monthly, yearly, each with a 3-day free trial) sold through Google Play Billing; the free tier gives one mock test per day and 30 practice questions. There are NO advertisements. There are NO user accounts and no login. All content is bundled in the app and works fully offline; progress, mistakes and statistics are stored only in the device's local storage. Permissions: internet access only, and only for Google Play Billing and a lightweight remote configuration/announcement fetch. No camera, no location, no contacts, no file access.