VVVF Speedometer is an app that allows you to enjoy the familiar VVVF inverter sound for railway fans while measuring your speed while moving.
It reproduces the acceleration sound of Keikyu Electric Railway 1000 series and provides a realistic driving experience.

Main features:
VVVF inverter acceleration sound
Plays the pleasant acceleration sound of the VVVF Doremi Fine Inverter during acceleration.
You can enjoy the realistic sound of Keikyu Electric Railway 1000 series.

GPS speed measurement function
Measures your speed while moving using GPS and displays it in real time.
Can be used when traveling by train or car.

Keikyu Railway route simulation
Calculate travel distance based on Keikyu Railway route information.
Simulate movement and experience actual movement between stations.

Achievement release function
Achievements are unlocked when you travel to the set destination.
Once you unlock the achievement, you will be able to select the next route and enjoy more sections.

Notes:
Please be careful not to stare at the screen while driving.
The displayed speed is a guideline only.
When driving a car, please drive safely and do not exceed the legal speed limit.

Target users:
Railway fans, especially those who like VVVF inverter sound.
Those who are interested in Keikyu Electric Railway.
Those looking for a speed measurement app.

Enjoy the sound of Keikyu Corporation's VVVF inverter anytime and anywhere with this app!