Knot/Knop Meter

Knot/Knop Meter

MEASURE YOUR SPEED ON WATER

0 ratings
Free

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Details

  • Released
  • Updated
  • July 3, 2026
  • October 6, 2026

Features

Background Location Access

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About

KnotMeter turns your iPhone into a precise GPS speedometer for your boat, no extra hardware, no subscriptions. Open it, head out on the water, and see exactly how fast you're going in knots. Whether you're chasing a personal best, comparing boats with friends, or just curious what your hull can really do, KnotMeter measures it and remembers it. MEASURE YOUR SPEED • Real-time speed in knots (SOG) straight from GPS • Live session max and average speed • Four speedometer styles: dial, fixed 0–100, digital and bar • Color heats up from yellow to red the faster you go • GPS quality indicator so you know the reading is solid MORE THAN A SPEEDO • G-force meter, like a sports car • Live compass heading • Wind speed, direction and gusts • Every run auto-saves with location, heading, wind and peak G GLOBAL LEADERBOARD • See the fastest boats in the world and in your country • Filter by country, boat size, fuel (petrol/diesel/electric) and year • The all-time champion shines at the top • Add your boat with a photo, brand, model and engine details BUILT FOR THE WATER • Keeps measuring with the screen off or the phone stowed • Water-only, it won't count speed from a car or a plane • iCloud sync: your boats and runs follow you to a new device • Sign in with Apple • Dark and light themes • Free Download KnotMeter, hit the throttle, and find out how fast you really are.
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What's New in Knot/Knop Meter

1.08

October 6, 2026

The Chart tab is now a full chart plotter for Norwegian waters. • Auto route — pick a destination and KnotMeter searches Kartverket's depth data for a way through at your boat's safety depth. It refuses rather than guesses, and tells you what it checked and what it could not. • Depth shading and soundings, with your own depth bands and your safety depth marked. • Shallow-water look-ahead that watches the water in front of the boat, not just under it. • Ships nearby — live AIS from Kystverket, with a collision warning. • Chart guide — every colour, buoy, light and symbol on the chart explained in plain English, with a Show me button. • More layers: seabed relief, bridges and cables with clearance, lights and buoys, fishing rules, fish farms, nature reserves, lake depths and Apple satellite imagery. • Waypoints, routes, tracks and GPX, anchor watch, and a man-overboard button that explains itself before you need it. • Harbour and anchorage descriptions from Den norske los, and place search. • Offline chart packs, a 3D view, and depth from your own instruments over Wi-Fi. With more than one boat, the Speed tab now shows which boat you are recording to and switches in one tap, and the leaderboard shows your name in full with the boat number beside it. Norway only. Guidance, not for navigation — the general rules of the sea always apply, and you keep the lookout.

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