CA'Sim vs Bridgedeck Study
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
CA'Sim
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Transform your device into a professional radar simulator and collision avoidance training tool. CASim is designed for maritime cadets, deck officers, and navigation enthusiasts who want to master the International Regulations for Preventing Collisions at Sea (COLREGs) through practical application. Bridge the gap between theory and reality. Practice identifying risks on the radar scope, correlating them with visual aspects, and executing the correct maneuvering actions. Key Features: - Realistic Radar Simulator: Experience a fully functional Head-Up radar scope complete with variable range scales, target trails (history), and relative motion vectors. - Tactical Plotting (MoBoard): Integrated digital Maneuvering Board. Plot targets manually or automatically to calculate CPA (Closest Point of Approach), TCPA, and determine the precise course to steer to avoid collisions. - Visual Aspect Visualization: See what the target ship looks like in reality. The app generates 3D models with correct Navigation Lights (Night) and Day Shapes based on the targetβs aspect angle. - Restricted Visibility Mode: Simulate fog conditions (Rule 19). Test your ability to navigate using only radar and sound signals. - Sound Signals: Authentic fog signals (Rule 35) are generated automatically based on the vessel type and status (Underway, Stopped, NUC, Anchored, etc.). - Custom Scenarios: Create your own traffic situations with multiple targets, varying speeds, and ship types to challenge your skills. Whether you are preparing for your competency exams or refreshing your skills, CASim provides the most comprehensive simulation environment right in your pocket. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Bridgedeck Study
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Bridgedeck Study is the voice-first way to prepare for your UK MCA deck officer oral exam. Speak your answers out loud to an AI examiner that questions, probes and follows up like the real thing β for OOW Unlimited and OOW Yachts 3000 GT. PRACTISE OUT LOUD - Full mock orals (90 or 120 minutes) that pace and probe like a real MCA oral - Topic drills (10β60 minutes) to build mastery in one area at a time - An examiner that asks follow-ups, escalates scenarios and expects no second chances on the safety-critical topics BUILT ON REAL ORALS - Question bank grounded in hundreds of real candidate exam reports from UK exam centres - MCA-aligned syllabus coverage: COLREGs, buoyage, lights and shapes, stability, cargo work, emergencies, legislation and more - Model answers with citations to the underlying regulations KNOW WHERE YOU STAND - Every answer scored, with a full transcript after each session - Topic-by-topic mastery tracking and an overall readiness score - Countdown and progress against your booked exam date PART A AND FLASHCARDS - Flashcards are free β the full deck, no subscription needed - Part A multiple-choice practice papers in the MIN 690 format, with per-topic pass thresholds (OOW Unlimited) TRY IT FREE - 15 minutes of free voice practice β no card required - Your voice is never stored: audio streams live and only the text transcript is kept WHO IT'S FOR - OOW Unlimited (STCW II/1) oral candidates - OOW Yachts 3000 GT oral candidates - Cadets and crew building towards their first deck officer ticket Payment is charged to your Apple ID account. Auto-renewing subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings. Terms of Use: https://www.bridgedeck.app/terms Privacy Policy: https://www.bridgedeck.app/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: Bridgedeck Study at 13.0 against CA'Sim's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. CA'Sim sells 4 in-app purchases, starting at $0.99 per month and Bridgedeck Study sells 7 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
CA'Sim ships an update weekly, Bridgedeck Study every 6 days. The most recent releases landed on October 28, 2026 and October 17, 2026 respectively.
| Parameter | CA'Sim | Bridgedeck Study |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 6 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 18.6 | 13.0 β better |
| Further details β not scored | ||
| Size | 6 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Jatuphol Jaturapat | Office Care Systems (Pty) Ltd |
In-app purchases
CA'Sim
- Unlock All Features. (1 Month)1 Month trial$0.991 Month
- Unlock All Features. (3 Months)$2.993 Months
- Unlock All Features. (1 Year)$7.991 Year
- Lifetime Access$17.99
Bridgedeck Study
- Bridgedeck Written$14.991 Month
- Standard$49.991 Month
- Pro$79.991 Month
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- Bridgedeck Written Year$143.991 Year
- Standard Year$499.991 Year
- Pro Year$799.001 Year
- Exam Pack$99.99









