Boat Speedometer: Hull Speed

About this app

HullSpeed is a clean, highly legible sailing and boating speedometer with Apple Watch and Live Activity support. It works for all activities but is designed around sailing. Designed for quick speed checks while underway, HullSpeed gives sailors and boaters a simple, reliable marine speed readout on Apple Watch and iPhone. HullSpeed keeps the focus on what matters: your current BOAT SPEED. The display is large, simple, and easy to read at a glance, making it ideal for sailing, dinghy racing, cruising, or any time you want a straightforward marine speedometer without clutter. A small trend chart helps you quickly see the impact of trim changes. HullSpeed also records your voyages so you can review your time on the water later. Saved voyages include speed, distance, duration, average speed, maximum speed, route history, and exportable CSV data. In addition to sailing data, HullSpeed also withs with Apple Health to measure your heart rate via an Apple Watch so you can keep track of your activity at sea. Features: * Large, high-contrast live speed display. * Designed for quick wrist checks on Apple Watch, or quick glances at your phone. * Live Activity support on iPhone. * Record sailing voyages from iPhone or Apple Watch. * Track distance, duration, average speed, and max speed, and heart rate. * View saved route history. * Export voyage data as CSV or KMZ. * Unlock continued use with a one-time in-app purchase. * Includes 3 free trial voyages. If you like it you can purchase for life. No subscription or account required. Privacy Policy: https://www.catspaw-systems.com/PrivacyPolicies/HullSpeedPrivacy.html

Improvements to free mode layout

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 23, 2026 · 6:30 PM Free