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The Official Chamonix Application
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Simple tool to get RTK corrected coordinates into Mapit and log RAW GNSS data.
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Flying weather with wind by altitude, thermals, and vertical profiles.
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Celestial navigation. Take the sextant and get your Line of Position.
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PSK31 and PSK63 for Ham Radio
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Explore the US ham radio band plan
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Boating and fishing GPS maps, weather forecast, depth charts and safety alerts
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Life’s better boating! Spend more time boating, less time booking.
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Real-time compass with artificial horizon displaying heading, roll and pitch
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Graphical wind component calculator for pilots
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Computation of solar time and simple solar ephemeris for gnomonist
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Sentinel helps you to Monitor and Control your boat remotely
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Friendly waterway navigation
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Discover the Frisian lakes on the waters with this free navigation app.
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Maritime weather forecast for Denmark
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Spot advisor is a surf diary and has a personalized surf forecast.
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OpenSummit is now OpenSnow
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Fishing Spots, Marine/ Nautical Charts, HD Sonar Maps w/ Tides, Marine Weather
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Upgrade USCG License
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Environmental Intelligence. The weather app for boating, fishing, & the outdoors