Klamp

Din plads venter.

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Your berth awaits. See free berths live, and set your own free when you sail out. Sailor to sailor — that is the heart of Klamp, and it will never be paid for. Your berth sits empty while you are out sailing. And somewhere nearby, a visiting sailor is looking for somewhere to tie up. Klamp is the digital version of the green/red plate. Flip your klamp as you cast off — others can see the berth is free, and you come home to a harbour that is alive. HOW IT WORKS Flip the klamp One tap as you sail out. Say when you are back, so the guest knows exactly how long the berth holds. If your plans change, the change lands straight away — on the chart, in the harbour and on the berth. Find a berth Free berths glow green on the map. No booking, no fee — you moor on trust, the way sailors always have. You have to be at the berth to take it, so first come, first served means actually coming first. The sign ties it together Print the QR sticker from the app and fix it to the mooring post. Anyone walking past can scan it and see at once whether the berth is free — even without Klamp. ON THE WATER Depth lies in soft contours beneath the boat, and when you plot a route you are told the shallowest measured point on every leg before you sail. Drop the anchor and sleep. The anchor watch remembers where the anchor went down and wakes you with an alarm of its own if the boat drifts out of the circle. And if you are ever unsure what a buoy is telling you, the seamarks are explained in the app's own reference book. And if someone goes overboard, one tap saves the point from the phone's GPS and shows the course back — the coordinate is laid out to be read aloud on VHF. Klamp does not place calls: channel 16 and 112 are the way to help. THE HARBOURS Over 10,000 harbours in 23 countries — from Norway and Finland to Portugal and Greece — with toilets, showers, power, water, fuel and a crane, where we know of them. Many carry a description gathered automatically from the harbour's own website; it always shows its source and date, so you can see where it came from. Save your favourites, keep your own notes, and let the app remember your recent searches. Your boat's dimensions are stored, so you are warned when a berth is too small — but we never hide it from you. Karma and klamps are the sailors' own way of saying thank you. And if you want the app to yourself, you can lock it with Face ID. Klamp speaks English, Danish and Swedish. KLAMP+ Wind drawn across the chart, so you can see what you are mooring into. Navigation with the instrument on the Lock Screen: speed, cross-track error and arrival time that keep telling the truth while the phone sits in your pocket. Watch the harbours you are heading for. Book ahead. And your own logbook with track, speed and distance. Weather on every harbour: a ten-day forecast, a tap on the day unfolds the hours. Your logbook follows you across your devices through your own iCloud — never through us. Keep two berths? Manage both from one account. 39 DKK/month or 249 DKK/year; the price in your currency is shown in the App Store. The subscription renews automatically until cancelled in your App Store settings. Sharing your own berth is free — and always will be. PRIVACY, TAKEN SERIOUSLY "The berth is free until Friday" also means "the owner is away until Friday". That is why we never show who owns a berth, and your name is shared only if you say so. When you confirm you have arrived, we work out the distance and throw the coordinate away — it is not stored. If you share your passage on Ahoy, it happens only with your explicit yes: only your latest position sits on the server, others can see it for ten minutes at most, and strangers never see anything but an anonymous dot. One tap removes it entirely. No ads. No tracking. No advertising networks. We host in the EU, and everyone else who touches data is named openly in the privacy policy. Klamp cannot promise you a free berth — only show you where one is right now. Made by sailors, for sailors. Fair winds. Privacy policy: https://klamp.app/privatliv Terms of use (EULA): https://klamp.app/vilkaar

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Klamp has a new look — and the chart has more room. • A new design throughout: lighter, calmer and easier to read in sunlight. Light is the default, dark follows your phone. Green now means one thing only: a free berth. • My berth is rebuilt: Free or Taken in one tap, and a light at the top that shows what you chose. • The menu is a floating glass bar, and the search on the map is a slim pill. Drag it up to see the nearest harbours — and all the way up for the full list. • Navigation takes a third of the screen instead of two: course, remaining and speed stay in view, the rest is one tap away. Drag the panel down and it becomes a single line. • Wind, waves and depth are one pill at the top of the map. Tap it to see everything. • "None reported free" instead of "None free": Klamp only knows the berths their owners have added. The harbour page now says there may be more — and gives you the harbour's number. • The waves on the map can be read: a colour scale, a reading at the centre of the map and arrows for direction. With Klamp+. • The sign for the post has the QR code in the middle, and the poster can be previewed before you share it. • Choose your text size under Settings: Small, Medium or Large. • New app icon and a new film on the front page. • Fixed: tapping a message could close the app. Messages that did not get through now say so. Klamp is an aid, not a navigation instrument. Sail by the chart.

The developer, Vizion Holding ApS, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • User Content
    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Vizion Holding ApS
Size
31.6 MB
Category
Navigation
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
English and 2 more
  • English, Danish, Swedish
Age Rating
4+
Copyright
© 2026 Vizion Holding ApS