WaveSpeed

Grappone Labs

About this app

WaveSpeed is a precision GPS speedometer built for personal watercraft and boats. See your current speed and highest speed at a glance in a high-contrast display designed for use outdoors.

Start a ride to record peak speed, time, location, nearby city, elevation, temperature, barometric pressure and humidity. Completed rides remain on your device and are available in Ride History with detailed statistics.

Performance mode automatically measures 0–60 MPH or 0–100 KM/H acceleration, plus 1/8-mile and 1/4-mile elapsed times and trap speeds. Switch between imperial and metric measurements at any time.

WaveSpeed uses live GPS data—never generated speed values. Lake names are displayed only when the current location can be identified confidently. Active ride tracking continues with the screen off through a visible background-location notification.

Features:
• Large live GPS speed display
• Persistent high-speed record with reset control
• 0–60 MPH / 0–100 KM/H timing
• 1/8-mile / 200-meter timing
• 1/4-mile / 400-meter timing
• On-device ride history and ride details
• Nearby lake and city identification
• Live weather, humidity, pressure and elevation
• Imperial and metric units
• No advertising, accounts or analytics

Use WaveSpeed responsibly. Operate controls only while safely stopped and always follow local boating laws.

What’s new

Initial release of WaveSpeed with live GPS speed, performance timing, ride history, weather, and imperial or metric units.