FAQ

PassageMaster™ is a satellite-first cruising companion and onboard intelligence layer from Astramara, LLC. It helps recreational cruisers with planning context, vessel context, and situational awareness. The captain remains responsible.

• Public website: https://www.passagemaster.com (also https://passagemaster.com) — marketing / communications.
• Product: https://passagemaster.app — the PassageMaster™ Progressive Web App (sign-in required).

No. PassageMaster™ is decision-support. It is not for navigation. It is not certified navigation equipment, not official carriage, and must not be used as a substitute for official charts, certified instruments, a proper lookout, or the captain’s judgment. See the Disclaimers.

The captain. PassageMaster™ assists awareness and planning; it does not command the boat or replace prudent seamanship.

Quartermaster is the onboard AI assistant inside PassageMaster™. It helps the crew think with structured, vessel-grounded context. It is not an “AI captain,” not certified navigation, and not a substitute for emergency services.

Yes, on supported devices. Wake word is off by default. Turn it on in Settings → Quartermaster, then say "Ahoy, Quartermaster" and ask something like "Brief the watch." It isn't available in Safari on iPhone or iPad; use push-to-talk or type instead.

PassageMaster™ is available today as a Progressive Web App. Tablet-primary underway; phone is glance-only. Native iOS and Android apps are intended later, after this public website — they are not available in the App Store or Play Store yet.

The product at https://passagemaster.app requires sign-in. Membership and access are managed in the product. Accounts are created in the app at passagemaster.app (sign up from the login screen).

See Pricing and the Subscription and Refund Policy.

No. Our listed prices (USD 10.00 per month and USD 110.00 per year) don't include tax. Depending on where you live, sales tax, VAT or GST may apply. Stripe, which processes payments and is the merchant of record for new memberships, works out any tax due from your billing details and shows it at checkout before you pay. See our Subscription and Refund Policy for details.

No. PassageMaster™ can consume externally authored GPX passages for decision-support planning context. It does not compute a recommended track, polar optimizer, or a leave-now call.

Yes. Logbook keeps Passage Logs for the boat and Dinghy Logs for the dinghy, recorded on this boat's chosen recorder device or imported from GPX, and you can export a logged trip. It's a decision-support record, not live navigation.

Yes, as a GPX file: a route, track or waypoints, up to 10 MB, with long tracks simplified. It's planning context only: PassageMaster™ doesn't weather-route or recommend a track, and an imported line is not for navigation.

Yes, with limits. Active members can download Passage Weather corridor packs (GFS / ECMWF along a planned line) for on-device last-good planning context. Download and refresh require membership. Packs are not a free weather API and are not the same as Harbor / Nearby Open-Meteo awareness. They are decision-support only. They are not weather routing, isochrones, a recommended track, or a leave-now call.

Yes. Harbor shows the boat's status and labels simulated, unavailable or stale data, plus nearby weather with how fresh it is, sun and moon, and tide where an installed offline region pack includes a tide station. It's planning context, not a certified weather product, an official forecast, an official tide table or a nautical almanac.

PassageMaster™ does not currently provide a working internet AIS traffic picture. When AIS UI has nothing to show, it must not be read as “all clear.” AIS glance is situational awareness only — not collision avoidance.

BridgeSpan provides next-structure decision-support for a published corridor pack (Melbourne → Miami first). Hail the tender — the gauge on the bridge wins. It is not a live tender and not certified navigation.

No. There is no autopilot control and no NMEA transmit.

Yes, it reads vessel data from a Signal K server on your boat's network, labels missing or simulated data, and can fall back to device GPS. Vessel-data access is read-only. It does not send autopilot commands.

No. Any chart imagery or ENC-style look is decision-support context only — not official carriage and not a certified ECDIS/ECS claim.

Yes. Nearby shows what's around the boat, Planning is for reviewing passages (no weather routing), and Underway is for the tablet at the helm, a glance on phones. Find (Nearby and Planning, needs a connection) drops a temporary shore pin; map imagery and Find results are not official charts and not for navigation.

No. Offline is first-class for boat state, last-good caches, and packages already on the tablet. It is not a promise of worldwide offline official charts.

No. Any emergency helper path is helper only — never a substitute for captain judgment, EPIRB, RCC, USCG, or SAR.

Yes, a decision-support swing circle, not a certified anchor watch. It uses your chosen boat-data connection, falling back to device GPS, and sounds only while the app is open and on screen. There are no notifications or vibration, and the screen can sleep, so keep the app open with the screen on and keep a proper anchor watch.

Use Contact us. It opens your email app. Nothing is sent until you tap Send, and nothing is stored on this website.

On this website — the Privacy Policy and Terms of Service.

Yes. Active members can opt in. Text alerts are off by default, and the agreement checkbox starts unchecked. PassageMaster™ can text an active member about their own boat. A text is a Victron VRM reading with the time. A tank, temperature, or battery text is not sent when Victron has no fresh reading. Message frequency varies. Reply STOP to opt out. It is decision-support, not a certified alarm. The Cerbo remains the alarm. It does not say the boat is safe.

Yes. Harbor Status can offer a Bluetooth connection to a JBD-compatible BMS. In a supported browser it shows that pack’s own report: voltage, current, state of charge, cells, temperatures, and protection. The report is decision-support. It is not a certified state of charge, and it is not the boat’s house-bank reading. PassageMaster™ does not change the limits stored on the BMS. A pack usually allows only one Bluetooth connection, so another phone or battery app has to disconnect first. Supported browsers are Edge or Chrome on a computer, or Chrome on Android.