Questions
and answers.

Salinity is an Android app for boat owners. Today it offers U.S. weather, tides and currents, Florida fishing regulations, solunar times, the Emergency Plan, a man-overboard alarm, a catch log and maintenance reminders. Its read-only NMEA 2000 engine monitoring, which learns your engine’s normal from complete trips, is built but not in the current Android app because that app cannot connect to a boat. It is decision support, not a chartplotter, emergency service, or substitute for the captain.

Testers can install the signed Android app (APK) from salinity.live. Email hello@salinity.live for access. Salinity is not on Google Play or the App Store, and there is no iPhone app. Open the Install page for details.

NMEA-powered features need a compatible Bluetooth NMEA 2000 gateway and supported data published on the boat network. The current Android app cannot connect to a gateway, so these features are not in it. Compatibility depends on the exact model, interface, PGNs and data available, not a brand whitelist.

No. Salinity’s supported gateway path is read-only: it listens to available NMEA 2000 data and has no product feature for sending commands back to the network.

Salinity is built to learn from complete trips. It keeps a separate normal for each RPM range, from idle to wide-open throttle, for oil pressure, coolant temperature, voltage and other supported readings. More complete trips make the comparison more confident. This is not in the current Android app, which cannot connect to a boat.

No. Hard reference limits give an early check, and Salinity is built to notice when a reading no longer fits the engine’s learned normal for that RPM range. Neither is in the current Android app, and neither replaces manufacturer alarms.

Today the Android app gives local phone notifications for the man-overboard alarm, Emergency Plan check-in reminders and tide alarms. Engine, electrical, depth and anchor alerts are not in the current Android app, which cannot connect to a boat. Delivery depends on phone permissions and Android’s power settings.

No. Never use Salinity as a life-safety system. Maintain a proper lookout and required equipment, follow official charts and manufacturer alarms, and use VHF/DSC, an EPIRB or PLB, and the appropriate local emergency service when needed.

The Android app keeps your records on the phone so they work offline. While you are signed in, it also copies your boats, maintenance, marks, catch records and Emergency Plan to your Salinity account, and uploads completed trips unless you turn off Automatic trip backup in Settings, which is on by default. On a new phone, sign in with the same account to restore them. Restore has not been tested on a real phone, and catch photos, app settings and trips that never uploaded are not restored. The website dashboard also has private account storage for boats, trips, maintenance, marks, plans, conditions, safety records and files.

Yes. The Trip Planner on salinity.live offers NOAA Marine chart, USGS Satellite, and NOAA BlueTopo Relief views. It keeps the same center and zoom while switching, uses a half-second hold to place ordered waypoints, and includes undo, editable names, icons and coordinates, NOAA point context, browser drafts, and GPX export. It accepts DD, DDM, or DMS coordinates, either coordinate order, and selectable navigation and depth units. Satellite imagery is online-only. Never use these reference views or the regional depth estimate as a navigation chart.

Use the same format shown on your chartplotter or coordinate source. DD, DDM, and DMS are common choices across Garmin, Lowrance, Simrad, B&G, Raymarine, Furuno, Humminbird, and other marine displays, although menu names and precision vary by model. The salinity.live trip planner and dashboard support all three plus either coordinate order; the Android app uses a fixed format. DDM is the boat-friendly default. Formatting does not convert a datum: confirm both devices use WGS 84 before copying a position.

Yes. The Live Tides page requests measured water levels and predictions from NOAA CO-OPS for the selected station. Search a harbor or city, enter a seven-digit NOAA station ID, or allow one-time location access to find the nearest station. Observations and predictions are labeled separately. Coverage is limited to NOAA stations in the United States and its territories, and a nearby station can differ from the exact water around your boat.

The private dashboard can store a credential record and supporting file now. The dedicated credential wallet, expiration workflows, verification states, and location-aware fishing-rules engine remain on the roadmap. A stored image may not replace an official credential, and users must verify licenses, permits, seasons, limits, and closures with the responsible agency.

Mechanic Live is a roadmap design for preserving the exact time, lead-up, and recorded system state around an irregularity. The owner could share that evidence with a mechanic before a visit. It records context; it does not prove the cause, authorize a repair, or replace manufacturer diagnostics.

The account model allows one active Android phone per individual account. A paired watch follows that phone and does not use another phone slot. Server-side device binding is built, but full enforcement waits for the signed Android request and integrity rollout.

Family Pro is designed for one owner plus up to three invited adult members. Each person uses a separate account and settings. The owner shares a private, expiring invitation link; members do not share the owner’s password.

Yes. On salinity.live you can use Continue with Google or your email and password. In the Android app, Google sign-in has not been confirmed on a phone yet. If Google does not bring you back to the app, sign in with your email and password, or sign in on salinity.live.

One paid plan at launch: Salinity Pro, $25 a month per account, with one active phone and your first Salinity gateway included. Each extra gateway for another boat has a one-time fee, set before launch. The gateway has not been tested on a boat yet. Founding seats pay $12.50 a month for as long as the subscription stays active. There is also a free account. The final Free-versus-Pro feature split is still being decided, and live checkout stays off until Stripe prices, webhooks, taxes, refunds, and entitlement changes are verified end to end.

Nothing is sold yet. Create a free account at salinity.live, then join the waiting list at salinity.live/founding. The first 500 boats get founding seats at $12.50 a month for as long as they stay subscribed. When Salinity reaches the stores, everyone on the list gets one email. Android testers can ask for the test build at hello@salinity.live.

The assistant receives only the messages you type and a short portion of this chat. Do not enter passwords, payment-card details, precise location, medical information, private boat records, or emergency details. When AI mode is enabled, that text is sent through Salinity’s server to its configured AI service provider for an answer.

Email hello@salinity.live from the address on your account. Include a short description, app version, phone model, gateway model, and what you already tried. Never email a password or complete payment-card number.