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UBI Funkprüfung & Zeugnis
All 130 official questions and the 12 exam sheets for the German UBI certificate – learn with a traffic-light system and a timer set to the official exam time.
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A look inside the app
Your exam prep with UBI Funkprüfung & Zeugnis
On German inland waterways, operating a vessel with a VHF radio installation requires the UBI – the VHF radiotelephony certificate for inland waterway radio. The theory behind it fits comfortably on your phone: this app carries all 130 official questions and answers from the current ELWIS catalogue, the exact source the German theory exam is compiled from.
One important point for English-speaking boaters: the app is in German throughout. Because the exam itself rests on the official German question catalogue, every question, answer and explanation in the app is written in German – so a working command of the language is a prerequisite for studying with it.
The tooling makes the material manageable. Explanations accompany every question, the traffic-light system separates what still needs practice from what already sits, and a star lets you bookmark stubborn questions for targeted review. Your statistics chart the way to exam readiness. For the finish, exam mode runs all 12 official exam sheets under real conditions with the official exam time on the clock. The first 26 questions are free; the full catalogue unlocks via one-time purchase or subscription.
Who is the app for?
The app addresses recreational skippers on Germany's rivers, canals and lakes who have a VHF radio installation on board or plan to charter one – typically holders of the German inland sport boat licence. It also serves boaters doing UBI and SRC back to back to be licensed both inland and at sea. English speakers are welcome, but should be able to read German, as all study content follows the German catalogue.
The exam
The UBI is the VHF radiotelephony certificate for inland waterway radio and is mandatory when operating a vessel with a VHF radio installation on German inland waterways. The theory exam is taken with the responsible examination committees and is based on the official catalogue of 130 questions. The app trains exactly this catalogue together with the 12 official exam sheets.
Learning features at a glance
130 official exam questions
The complete official UBI question catalogue with all answers, current per ELWIS – you rehearse precisely the questions the real theory exam is built from.
12 exam sheets under real conditions
All 12 official exam sheets are available in exam mode, complete with a submission timer running at the officially prescribed exam time.
Study material in German
All questions, answers and explanations appear in German, in line with the official catalogue used for the exam on German inland waterways.
Traffic-light progress tracking
The traffic-light system grades every question from your answer history – red means practise again, green means ready – backed by detailed statistics.
Star difficult questions
Bookmark tricky questions with a star and revisit them in a separate round, closing your final knowledge gaps efficiently.
No internet required
Everything works offline: study on board, on the bus or while waiting at a lock, without spending a byte of mobile data.
Frequently asked questions
Is the app available in English?
No, there is no English mode. The app renders the official German ELWIS catalogue – questions, answers and explanations – exclusively in German, since that is the material the German exam uses. Treat this page as an English overview of a German-language app.
Is the UBI required on the Rhine?
Yes – the Rhine counts as an inland waterway, so anyone operating a boat with a VHF radio installation there needs the UBI. The same applies on other inland waterways where radio requirements are in force; check the rules of your specific cruising area before setting off.
What is the difference between the UBI and the SRC?
The UBI applies to inland waterway radio on rivers, canals and inland waterways, while the SRC governs marine VHF in coastal waters. Planning to run a radio-equipped boat at sea as well? Then you need the SRC on top – and we provide a separate SRC app with the matching official question catalogue.
How many questions does the UBI exam draw from?
The official catalogue comprises 130 questions, from which the exam sheets are assembled. In the app you cover all 130 of them and additionally rehearse with the 12 official exam sheets in exam mode.
Can I try the app before paying?
Yes – 26 questions are open from the start, enough to get properly acquainted with the traffic-light system and learning mode. If it wins you over, the remaining catalogue and the exam sheets unlock through a one-time purchase or a cancellable subscription.
Does studying work without a connection?
Completely. Questions, explanations, exam sheets and your statistics live locally on your device, so neither Wi-Fi nor mobile data is needed – a real asset on board or in areas with weak reception.
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Start your preparation now
Download UBI Funkprüfung & Zeugnis for free and study with the official exam questions — anytime, even offline.