Volume by Velocity, developed by Gamifi LLC, is a free iPhone app that offers a unique solution for listening to podcasts and audiobooks in the car. This app uses an algorithm that adjusts the volume of your music based on your speed, effectively countering road noise and ensuring a pleasant listening experience.

With its automatic mode, Volume by Velocity provides optimized settings to block road noise and prevent disturbance to others while you are stopped at lights. For those who prefer more control, the manual mode allows customization of the speed and volume range to suit individual preferences.

It's worth noting that when the app adjusts the volume, iOS presents a volume changing indicator, which may occasionally interfere with other apps. Additionally, Volume by Velocity utilizes GPS to determine your speed, so it is important to be mindful of the impact on battery life and consider keeping your device plugged in while using the app.

Overall, Volume by Velocity is a handy utility that enhances the audio experience in the car, making it easier to enjoy podcasts and audiobooks without disruptions from road noise. If you're looking for a convenient way to control your music volume while on the go, this app is definitely worth a try.