About this app

Pass your UBI radio exam with confidence: study the German UKW-Sprechfunkzeugnis for inland-waterways VHF radio (UBI) with all 130 official exam questions and a realistic exam simulator. This app prepares you specifically for the Sprechfunkzeugnis: every original question, content aligned with ELWIS and the WSV, and a clear learning path that shows you exactly when you are ready. EXAM SIMULATION • 22 questions in 60 minutes, exactly like the real exam • Pass from 17 correct answers • Review with full solutions right after each run STRUCTURED LEARNING • All 130 questions from the official catalogue • 5 topic categories: radio equipment, voice radio, traffic circuits, inland-waterways radio and operating procedures • Study by section or drill individual topics • Mark tricky questions and group them by tags READINESS SCORE • A readiness score shows your progress at a glance • See instantly which topics still need attention • Practice until you are confident in every category ANYTIME, ANYWHERE • Fully offline, no internet needed, even out on the water • Clean, distraction-free interface • For iPhone and iPad Whether for recreational boating or professional practice on inland waters: with the exam simulator, the readiness score and targeted repetition, you walk into your UBI radio exam fully prepared. This app is unofficial and not an official examination platform; it is intended solely for exam preparation.

Latest release

What’s New

Version 1.0.1 Jul 4, 2026

Answer options now appear in a randomised order for more realistic exam practice. Plus minor improvements and bug fixes.

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