# Coxswain HQ — USCG boat crew reference > USCG boat crew reference (iPhone/iPad app by SEDX LLC.) - Source: https://appshunter.io/ios/app/coxswain-hq/id6776329571 (this page in markdown: same URL + `.md`) - Developer: [SEDX LLC](https://appshunter.io/developer/6776048808) - Category: Education - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.1 · 84 MB - Languages: American English - Released: 2026-07-01 - Data updated: 2026-07-21 - User reviews in markdown: https://appshunter.io/ios/app/coxswain-hq/id6776329571/reviews.md ## What is Coxswain HQ? Coxswain HQ — Three Maritime References, One Pocket-Sized Library Built for USCG Auxiliarists, Coxswain candidates, recreational boaters, and anyone who studies for the helm. The three public-domain references mariners actually carry — bundled, searchable, and offline. No ads. No upsell. No subscription. No data sharing. No account required. WHAT'S INSIDE USCG NAVIGATION RULES HANDBOOK (COLREGS + Inland) The complete International Rules (72 COLREGS) and Inland Rules (33 CFR 83) — presented side-by-side rule by rule, exactly as the official USCG handbook does, with a quick toggle to show only International, only Inland, or both at once. Parts A–F plus Annexes I–V. USCG BOAT CREW SEAMANSHIP MANUAL The full Boat Crew Seamanship Manual — boat handling, towing, search & rescue, heavy weather, navigation, sound signals, anchoring. Every chapter, searchable. NGA PUB 102 INTERNATIONAL CODE OF SIGNALS All 40 signal flags (26 letters + 10 numerals + 3 substitutes + answering pennant) with their single-letter meanings, plus two-letter Distress/SAR/Maneuvering/Weather sections. THE FOUR TOOLS YOU'LL ACTUALLY USE SIDE-BY-SIDE NAV RULES International (72 COLREGS) and Inland (33 CFR 83) shown in parallel for every rule. Toggle: Both / International / Inland. The killer view for license candidates who need to know which jurisdiction says what. KNOT LIBRARY Bowline, Cleat Hitch, Clove Hitch, Square Knot, Sheet Bend, Round Turn & Two Half Hitches, Anchor Bend. Use case, verbatim Boat Crew procedure, and deep-link back to the manual section that mentions the knot. SIGNAL FLAG DECODER 40-flag grid with phonetic name and SVG glyph for every flag. Plus a multi-flag hoist decoder — type the hoist, get the meaning. Works offline. COXSWAIN PQS CHECKLIST 42 Personnel Qualification Standards tasks across 10 categories (Helmsmanship, Navigation, Engineering, Communications, Seamanship, First Aid, Damage Control, more). Check off as you complete each task; the app deep-links every task to the relevant Boat Crew Seamanship section so you can study right there. OFFLINE BY DESIGN • Fully offline — no signal needed underway • Dark, low-light interface for the wheelhouse • Fast search across all three references at once • Bookmarks + recently viewed sections • PQS progress saved on-device WHO IT'S FOR • USCG Auxiliarists studying for Boat Crew Member, Coxswain, or higher qualifications • Power-boat and sailing captains preparing for USCG OUPV (6-pack) or Master licenses • Recreational boaters who want the real Nav Rules at a glance • Anyone responsible for safe operation of a small vessel SAFETY DISCLAIMER This app is a study and reference tool. NOT FOR PRIMARY NAVIGATION. Always consult current official USCG publications, Local Notices to Mariners, and current charts when actually underway. Maritime regulations are updated weekly — verify any operationally significant rule or procedure against the current source. ATTRIBUTION This app is an independent reference tool based on US Coast Guard and US National Geospatial-Intelligence Agency publications — works of the United States Government in the public domain. It is not affiliated with, endorsed by, or sponsored by the USCG, USCG Auxiliary, NGA, Department of Homeland Security, or Department of Defense. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Coxswain Pro | $0.99 | one-time | ## Version history (last 2 releases) ### 1.0.11 — 2026-07-02 Fixes an issue that prevented the Pro unlock purchase from completing. ### 1.0.10 — 2026-07-01 No release notes. ## More apps by SEDX LLC - [US Army Survival Manual](https://appshunter.io/ios/app/us-army-survival-manual/id6776048709) - [Cadet Handbook](https://appshunter.io/ios/app/cadet-handbook/id6776048806) - [Ranger Handbook](https://appshunter.io/ios/app/ranger-handbook/id6776048809) - [FM Library](https://appshunter.io/ios/app/fm-library/id6776329431) - [ICS Field Guide](https://appshunter.io/ios/app/ics-field-guide/id6776329541) All apps by SEDX LLC: https://appshunter.io/developer/6776048808 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-21.*