Hull Speed

Name: Hull Speed
Rating: 3 (2 reviews)
Author: Peter Zink

By: Peter Zink App

GPS speedometer, in knots

Overview

Version:

1.0.1

Last updated: 2026-07-16

Ranking

#850,716 ▲ 57,557

Overall

Features & Capabilities

Hull Speed is a simple speedometer for sailors. It shows your speed over the water in knots — big, clear, and accurate — on your iPhone and Apple Watch, with nothing in the way.

Built for trimming sails: make a small adjustment, then watch the number and the live trend graph to see whether you just got faster.

FEATURES • Accurate GPS speed in knots, updated every second, using the same Doppler method as dedicated marine instruments — no paddlewheel to foul or calibrate. • A live speed graph on a steady, fixed scale, so a small gain from a trim change is easy to spot. • Enter your boat's waterline length and Hull Speed draws your theoretical hull speed right on the graph — see at a glance how close you are to it. • Apple Watch app with a Keep Awake mode that holds the screen on while you sail. • Completely private — your location is used only to compute speed on your device, and is never stored, sent, or shared. No accounts, no ads, no tracking.

One number, done right.

User Growth & Download Statistics

App

By:

Peter Zink

Rating:

3.00

(2) 2.00

Version:

1.0.1 Last updated: 2026-07-16

Version code:

888413187

Creation date:

2026-06-30

Compatible devices:

Size:

799.00KB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-19

Compare stats and ranking:

Ranking

# 850,716 ▲ 57,557

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Peter Zink

Apple Apps Store

https://apps.apple.com/us/app/hull-speed/id6784663005

Website:

https://metricdevices.com

User Reviews

Hull Speed has completely changed how we trim sails during races. Real-time boat speed right in front of our trimmers means they get instant feedback on every adjustment, no more shouting back and forth to the helmsman and losing precious seconds (and focus) in the process. The live speed readout plus the day’s speed graph make it easy to see what’s working and dial in trim on the fly. And a small but huge detail: the screen never dims or gets blocked by a screensaver mid-race, so the number you need is always right there at a glance. Since adding it to our routine aboard More Equal, we’ve had more top-three finishes this season than ever before. Can’t recommend it enough for any racing crew looking to sharpen their trim game.