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The Binnen Skipper app alerts you the moment the official storm-warning lights come on at Lake Chiemsee, Lake Starnberg, the Ammersee, the Tegernsee or the Great Brombachsee. It also offers a nautical chart, wind, water level and water temperature. All safety features are free of charge.
Orange flashing lights on the shores of Bavaria's lakes warn of strong winds and storms: 40 flashes per minute mean strong wind, 90 mean storm. But only those looking in the right direction see the signal – from a boat, behind the sail or in the rain it often goes unnoticed. The Binnen Skipper app brings that warning to your phone, covering Lake Chiemsee, Lake Starnberg, the Ammersee, the Tegernsee and the Great Brombachsee. It also offers a nautical chart, wind, water level and temperature, an anchor watch and a man-overboard function. It was built by Titus Hildebrand from Landshut, who has been sailing since childhood. All safety features are free of charge.
Bavaria's lakes are watched over by a warning system older than any smartphone: orange flashing lights on the shore, triggered by the German Weather Service and switched on by the regional emergency control centres. Forty flashes per minute mean strong wind, ninety mean storm; the lights operate from 1 April to 31 October. The catch is as old as the system itself: the light only helps those who see it. Behind the sail, in the rain or on the far shore it goes unnoticed. This is precisely the gap the Binnen Skipper app closes. It reports the state of the lights to your phone – for Lake Chiemsee, Lake Starnberg, the Ammersee, the Tegernsee and the Great Brombachsee. It also offers a nautical chart with harbours, piers and protected zones, wind and weather, water level and temperature, an anchor watch and a man-overboard function. You choose your lake in the app, and everything else follows from that. The app was developed by Titus Hildebrand from Landshut. He has been sailing since childhood, the family boat lies on Lake Chiemsee, and it all began out of his own need: before casting off he had to check five different places every time – weather, water level, water temperature, webcams, wind. What started as a single app for Lake Chiemsee now covers five lakes; that is why it has been called Binnen Skipper since early August 2026. All safety-related features are free of charge and will remain so: chart, storm warning, severe-weather alerts, anchor watch, man overboard and emergency call. An optional Pro version unlocks additional features and currently costs 14.99 euros. The app is available for iPhone and Android. One point matters to the developer: the app complements the official signals, it does not replace them. Anyone on the water remains responsible for keeping an eye on the weather.
“The light on the shore only helps those who actually see it. In the rain or behind the sail you don't – which is why the phone now flashes too.” Titus Hildebrand, developer of Binnen Skipper
“Before casting off I always had to check five different places. At some point I thought: there has to be an easier way.” Titus Hildebrand, developer of Binnen Skipper
“Everything to do with safety is free and will stay that way. Nobody should have to pay to look at their phone when the weather turns.” Titus Hildebrand, developer of Binnen Skipper
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Titus Hildebrand, developer of Binnen Skipper
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The nautical chart with harbours, piers and protected zones (shown: Lake Chiemsee)
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Wind forces on the Beaufort scale as shown in the app
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Storm warning for Lake Chiemsee
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Locations of the storm-warning lights on Lake Chiemsee
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Storm warning for Lake Starnberg
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Locations of the storm-warning lights on Lake Starnberg
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Storm warning for the Ammersee
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Locations of the storm-warning lights on the Ammersee
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Storm warning for the Tegernsee
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Locations of the storm-warning lights on the Tegernsee
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Storm warning for the Great Brombachsee
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Locations of the storm-warning lights on the Great Brombachsee
PNG · 1320 × 2868 px Download ↓If anything is missing – a particular image, a figure, a quote or an interview – just get in touch. I reply the same day and am reachable by phone in the evenings too.
Titus Hildebrand
+49 176 83036085
service@skipperfriends.de
for Skipperfriends – Andrea Ammelung-Hildebrand · Bernbeckweg 12, 84036 Landshut, Germany
