OFFLINE BOAT HEALTH · ANDROID
Every boat has a normal.
Salinity knows yours.
Salinity is a monitoring system. It reads what your boat already broadcasts on NMEA 2000 — engine, fuel, depth, position, batteries — and keeps the record, alongside weather, tides, rules, and every trip. It reads the network. It never sends commands back.
BUILT FROM YOUR TRIPSEach clean trip adds engine, sensor, and route history.
The example updates every 0.8 seconds and uses fractional speed plus changing acceleration and deceleration rates to mimic throttle and hull momentum. Salinity compares that live motion with the nearest learned one-MPH group.
At idle, all five readings match this boat’s learned operating group.
Small demonstration. These five familiar readings only show the idea. Salinity can interpret many more available NMEA 2000 readings and the relationships between them, depending on what the boat broadcasts.
Multi-engine capable. Illustrative neutral-idle, forward, reverse, and one-MPH groupings—not manufacturer limits, proof of safe operation, a diagnosis, or live boat data. Reverse grouping requires an available gear or direction signal.
HOW IT
LEARNS
Useful from trip one.
Available manufacturer/device alarms and same-trip checks can add context while Salinity is still learning. They never replace the helm display or manual.
Learns trip by trip.
Each complete trip groups direction, speed, RPM, fuel burn, pressure, temperature, voltage, and other supported readings that normally occur together.
Reads. Never controls.
Salinity uses that history to spot a move outside normal. It listens to NMEA 2000 but never sends commands back.
EIGHT PLAIN-WORD JOBS
Start with what
you need to do.
Salinity’s tools are organized around the job aboard—not technical menu names.
Monitor
Engines, electrical, tanks, sensors, fuel, maintenance, and NMEA network health.
Open ↗02Learn
Idle, reverse, speed-by-speed behavior, trip-built ranges, and relationship changes.
Open ↗03Record
Trips, incidents, fishing marks, service history, photos, documents, and notes.
Open ↗04Prepare
Weather, tides, routes, downloaded areas, checklists, limits, and safety plans.
Open ↗05Protect
Anchor, depth, tide margin, watch alerts, float plans, emergency information, and clear safety boundaries.
Open ↗06Comply
Licenses, vessel paperwork, permit reminders, official sources, and the fishing-rules roadmap.
Open ↗07Share
Mechanic Live evidence, family access, exports, and owner-approved emergency information.
Open ↗08Manage
Boats, active phones, subscriptions, files, account controls, privacy, and synchronization.
Open ↗MECHANIC LIVE · ROADMAP
Your boat’s diagnostic system.
In your pocket.
If an engine shuts off, stumbles, overheats, or shows an irregular reading once, you should not have to reproduce it for the mechanic. Mechanic Live is designed to preserve the exact time, the lead-up, and what every recorded system was doing together—so a mobile mechanic can review the job before leaving the shop.
Explore Mechanic Live- Exact event
- 14:32:18
- Port RPM
- 4,329 → 0
- Boat speed
- 29.8 MPH
- Channels kept
- 18
Recorded facts and observed sequence—not a guessed diagnosis.
ONE CONNECTED BOAT MEMORY
Everything aboard
should know what it belongs to.
Salinity’s Boat Graph connects the boat, engines, sensors, trips, operating modes, maintenance, conditions, places, files, credentials, and owner-approved people. That is how a single reading becomes a useful event—and how the whole history becomes more valuable trip by trip.
See the connected system ↗MEMORYNMEATRIPSSERVICETIDESRULESPEOPLE
LIVE NOAA CO-OPS DATA
The tide at
your station.
Contacting NOAA tide stations…
WORKING THREE-VIEW TRIP PLANNER
Hold the map.
Build the day.
Plan on the same NOAA Marine chart, USGS Satellite, and NOAA BlueTopo Relief views used in the app. Switch views without losing your place, hold for half a second to add a waypoint, undo, rename and re-icon marks, edit coordinates, check nearby NOAA context, and export GPX.
Open trip planner ↗CREDENTIALS & RULES · ROADMAP
The paperwork.
The fish. The water.
Keep personal licenses and vessel documents private, see what expires next, and connect a future source-linked fishing-rules check to the exact trip, location, date, crew, and permit context.
Captain credential
Permits & endorsements
Documentation
Insurance & inspections
SALINITY FOR ANDROID
Scan it.
Take it aboard.
Open Salinity’s permanent install page on your Android phone. The QR code keeps the website address simple; it contains no account or boat information.
Direct APK or Play Store installation will be enabled when the verified package or store listing is supplied.
salinity.live/installWORLDWIDE NMEA 2000 COMPATIBILITY
The network matters.
Not the logo.
Salinity is not tied to one chartplotter, engine brand, or region. Its read-only Bluetooth gateway direction uses supported standard data already moving across the boat's NMEA 2000 network.
The NMEA-powered engine, position, depth, fuel, battery, and environmental features are not region-locked. Salinity remains read-only and never sends commands back to the network.
- Garmin
- Lowrance
- Simrad
- Raymarine
- Furuno
- B&G
- Humminbird
- Any other NMEA 2000-capable MFD
These are examples, not limits. The brand at the helm does not decide compatibility; the supported PGNs available on the network do.
- Yamaha
- Mercury & MerCruiser
- Suzuki
- Honda Marine
- Tohatsu
- Volvo Penta
- Yanmar
- Cummins
- Caterpillar
- MAN
- MTU
- Scania
- John Deere Marine
- BRP & Evinrude
- Any other engine bridged to NMEA 2000
These are examples, not limits. Some engine networks need an approved interface first—for example, Yamaha Command Link or Mercury SmartCraft gateway hardware.
An unlisted brand is not excluded. Compatibility depends on the exact model, interface, supported PGNs, and data it publishes. Brand names are examples only; Salinity is not affiliated with or endorsed by these manufacturers.
SIX WORKING SYSTEMS
Find the job.
Then find the tool.
Every Salinity feature sits under one plain word. Open a system to see what works now, what is being proven aboard, and what comes later.
Is the engine acting normal?
Health
Worldwide NMEA 2000 monitoring with trip-built normal ranges for one engine or several, plus fuel, range, and maintenance.
- Reference limits
- Multi-engine monitoring
- Trip-built normal
- Speed-linked statistics
What will the water be doing?
Conditions
Weather, tides, currents, fishing windows, regulations, operating areas, and departure readiness.
- Marine weather
- Live NOAA tides
- Currents
- Solunar
Where are we, and what is the boat doing?
Underway
Worldwide NMEA 2000 position, depth, and live boat data alongside downloaded chart layers and underway tools.
- NOAA Marine chart
- NOAA BlueTopo Relief
- USGS Satellite
- Website trip planner
What happened out there?
Trips
Automatic tracks and summaries, engine history, catches, marks, photos, and the season’s working log.
- GPS journal
- Boat GPS handoff
- Automatic summaries
- Resale Passport
If the day changes fast, are we ready?
Safety
Emergency plans, man-overboard action, anchor movement, depth and tide margins, boat-system alarms, check-ins, and companion-watch alerts.
- Emergency Plan
- Departure message
- Man overboard
- Check-in alarms
What happens when service disappears?
Trust
Offline operation, read-only boat access, private records, bounded storage, transparent limits, and verified builds.
- Read-only design
- Offline core
- Worldwide NMEA core
- Private records
DEPARTURE TO RETURN
One day. One working record.
Salinity follows the job instead of making you work around its menu.
Health
Warm up, check the engine against its normal, and confirm fuel range.
Conditions
Review weather, tide, current, rules, and the operating area.
Underway
Keep position, depth, chart context, and live boat data together.
Trips
Review the automatic log, catches, marks, and engine history.
ACTUAL APP USE
Real activity.
No people list.
Free and paid accounts both count. A signed-in phone records one last-seen time when internet is available. No boat, location, trip, catch, or engine data is needed.
- Today
- Used within 24 hours
- Active
- Used within 7 days
- Inactive
- More than 7 days
ACCOUNT ACTIVITY
People using Salinity
Counts come from one signed-in check-in time. No boat, location, trip, catch, engine, or screen activity appears here.
Offline use is counted after the phone reconnects. Free accounts are included.
HONEST STATUS
No blurry promises.
In the signed preview
The feature exists now and is listed in the current product inventory.
READYBuilt, proving aboard
The feature can be tested while current-release on-water proof is gathered.
PROVINGVisible, not sold as ready
Future work stays clear without pretending it can be used today.
LATERBEFORE YOU INSTALL
Will it work
on your boat?
Android and iPhone release candidates are being prepared for store review. NMEA-powered features are designed for a compatible Bluetooth NMEA 2000 gateway, but that physical connection remains in hardware validation and is not enabled in public store builds yet. Conditions, logs, downloaded layers, and phone-based safety tools can still work without engine data.
NOAA Marine and BlueTopo map coverage focuses on U.S. waters, while USGS Satellite is online-only. Those data-coverage limits do not restrict the broader app. Free, Pro, and Family Pro packaging is prepared for storefront configuration.
SIGNED FIELD PREVIEW
Tell us what is aboard.
We’ll start with compatibility.
Salinity is an informational tool—not an official chart, emergency service, manufacturer alarm panel, or final diagnosis. Use required equipment and independent judgment.
Read the safety boundaries ↗