--- title: "RadioAce - GROL & GMDSS Prep - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Get licensed faster. No ads. No accounts. No distractions. RadioAce is a focused, offline study companion for anyone preparing for an FCC commercial radio operator license exam. Complete FCC Commerc" --- # RadioAce - GROL & GMDSS Prep — United States > FCC Commercial Radio License ![RadioAce App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/2c/f1/49/2cf149b4-ae6a-f192-862d-f85c97a0c05a/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [波 许](https://apptail.io/developer/developer-hGFJ) **Category:** Education **Rating:** 5.0/5 (1 ratings) **Price:** Free **Bundle ID:** com.weile.tools.radioace **Store:** Apple App Store **Country:** United States **Version:** 1.0 (released 2026-04-29) **Original Release:** 2026-04-29 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6764444728) **AppTail Page:** [https://apptail.io/app/radioace-grol-gmdss-prep-OKzz/united-states](https://apptail.io/app/radioace-grol-gmdss-prep-OKzz/united-states) ## RadioAce Description Get licensed faster. No ads. No accounts. No distractions. RadioAce is a focused, offline study companion for anyone preparing for an FCC commercial radio operator license exam. Complete FCC Commercial Question Pools: All 1,943 official questions across five exam elements: - Element 1: Marine Radio Law (24 exam Qs) - Element 3: General Radiotelephone (100 exam Qs) - Element 7: GMDSS Operating (100 exam Qs) - Element 7R: GMDSS Restricted (50 exam Qs) - Element 8: Ship Radar Endorsement (50 exam Qs) These are the exact questions you will see on test day. Five License Paths: Choose your license — MROP, GROL, GMDSS, GMDSS-R, or Radar — and RadioAce automatically selects the right elements and exam format. Realistic Mock Exams: Full-length exams matching the official FCC format and question counts. Quick mode for shorter sessions when time is tight. Timed display to build exam-day pacing. Figure and Diagram Support: Circuit diagrams, charts, and figures render inline. Tap to zoom for detailed study of complex visuals. Pass Prediction and Mastery: A per-license readiness score based on accuracy, coverage, and consistency. Per-topic mastery breakdown shows exactly where to focus next. Smart Study Tools: - Continue: pick up where you left off with new questions - By Topic / By Element: targeted practice - Mistake Review: re-drill every wrong answer - Random 25: quick mixed session - Bookmarks: save tricky questions Who It Is For: - Maritime radio operators seeking MROP or GMDSS certification - Broadcast and telecom professionals preparing for GROL - Radar endorsement candidates studying Element 8 - Anyone maintaining or servicing commercial radio equipment RadioAce Pro: Unlimited daily questions, all license types unlocked, one-time purchase — lifetime access, no subscription. - Our Promise - Data stays on your device. No personal information collected. Privacy Policy: Contact: bo.xu@163.com ## RadioAce Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d5/b8/5b/d5b85bda-083c-6456-5c25-d4862ba21a7d/phone-1-home.png/1290x2796.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/41/c2/7e/41c27e8b-7afc-4f20-8331-9dc130a0933a/phone-2-onboarding.png/1290x2796.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1b/c4/aa/1bc4aa5f-ab13-cadb-8323-680e1f3b0483/phone-3-quiz-diagram.png/1290x2796.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/16/14/ba/1614ba7d-c19c-8271-5b85-c9fbb9c8fdff/phone-4-mock-result.png/1290x2796.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c2/0c/21/c20c21b5-9722-cc16-3b68-d33bdfa0f775/phone-5-quiz-feedback.png/1290x2796.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/21/77/1e/21771ea8-0a9b-6b08-d674-50cbe2b3fc8f/phone-6-practice.png/1290x2796.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/49/7f/d4/497fd49b-c60d-00c4-12fb-afa9b8e557d6/phone-7-stats.png/1290x2796.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3d/05/73/3d0573b8-f31a-bc33-bd69-4b09706e37dd/phone-8-mock-start.png/1290x2796.png) ## RadioAce Rating Breakdown in United States - 5 stars: 1 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## RadioAce In-App Purchases | Item | Price | |------|-------| | RadioAce Pro | $3.99 | --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*