Apps Like Marinus: maritime rules for iPhone and iPad
Search navigation instantly anywhere
COLREGs offers flag identification, weather scales, cloud recognition, sound signal guidance, and vessel light details. Users can access navigation , interpret flags, and understand sound and light signals for safe boating.
Marinus: maritime rules screenshots
Ranked alternatives
Showing 21–40 of 1,000 ranked alternatives.


Savvy Navvy: Boat Navigation
SAVVY NAVVY LTD
Track routes, view charts, and monitor weather
View real-time GPS location and track movement. Access marine charts, weather forecasts, and tide information. Plan routes with smart routing features. Set and monitor alerts. Share coordinates and waypoints.

TZ iBoat – Marine Navigation
Nobeltec, Inc.
Navigate with real-time GPS and tidal data
Navigate using GPS, AIS Online, and radar. View charts for coastal boating, sailing, and fishing. Track tides and currents. Set anchoring points. Sync with Apple Health. Share routes and waypoints.


PredictWind — Marine Forecasts
PredictWind Limited
Track wind, waves, and currents
View high-resolution weather maps for wind, gust, CAPE, wave, rain, and cloud conditions. Access real-time from ECMWF, AIFS, ICON, UKMO, GFS, and proprietary models. Track wind speed, wave height, and current directions.

Master-Nav
Peterjohn Chisholm
Learn COLREGS rules and pass exams
Learn COLREGS rules through interactive visuals and memory aids. Practice exam answers with customizable quizzes. Track progress with built-in assessments and review tools.

Boat Games for Kids & Toddlers
Amaya Soft MChJ
Sail, explore, and conquer seas
Choose from various sea vessels like a pirate ship, steamboat, or submarine to explore the ocean. Navigate through different scenes, customize your vessel, and complete missions. Unlock new ships and upgrades as you progress.




Top Sailor
Szymon Ulatowski
Play, sail, and race boats
Learn sailing basics through realistic boat simulation. Adjust sails based on wind force and navigate races against AI opponents. Practice tacking, gybing, and downwind/upwind techniques. Monitor stability to prevent capsizing.

Nautical Charts & Maps
LW Brands, LLC
Download and view weather
View and download NOAA electronic navigational for offline use. Access in NOAA or ECDIS formats. Overlay NOAA weather for real-time conditions. Display buoys, beacons, lights, and natural/man-made features. Track radar and fog signals.


Aqua Map Boating
GEC s.r.l.
Download charts, navigate offline, connect instruments
Navigate using weekly updated nautical charts from NOAA. Plan routes manually or automatically. Record GPS tracks and store navigation data including markers and routes. Share data with others. Display tides and currents.

Seabook Maritime
Ozgur GUNES
Explore ship stability and navigation
Access ship stability guidelines, navigation rules, COLREG regulations, and marine engineering data offline. View GMDSS procedures, safety protocols, and environmental practices. Search for standards and reference materials anytime without internet.

AnchorQueen Jules
Barkin Takmaz
Monitor anchor position in real time
Monitor boat position and anchor status in real time. Receive alerts if the anchor drags or moves unexpectedly. Track vessel location and set custom alarm thresholds. View historical data and manage settings for multiple vessels.


i-Boating: Marine Charts & Gps
Bist LLC
Navigate with and river
Access for the USA, Canada, UK/Ireland, Germany, Netherlands, and European rivers. View NOAA vector , freshwater lake maps, and USACE inland river maps with bathymetry data. Create or import GPX/KML routes. Use voice prompts for route navigation.


How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.