About this app
Prepare for your marine radio certificate (CRR) and pass on the first try. Train under real conditions: full offline handbook, theme-by-theme practice with instant correction, and timed mock exams (24 questions, 30 min, 75% pass mark). • Offline handbook: distress (MAYDAY/PAN PAN), DSC procedures, VHF channels & frequencies, phonetic alphabet, Q-code… • Targeted practice: spot your weak theme and drill it. • Real-condition mock exams: timer, no correction until the end, detailed score. • Honest tracking: your success rate is computed from exams you actually took — never a promise. Premium unlocks unlimited mock exams and the full handbook.
Latest release
What’s New
This update adds a full English translation (previously the app claimed English support but had no translated strings), a per-app language setting, and a refreshed app icon.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 14, 2026 · 6:15 PM Free
Screenshots
