Sonus - Vroom
Your acceleration, amplified
Details
Features
Background Location Access
About
This app uses your phone's accelerometer to create dynamic engine sounds based on your acceleration. Enjoy realistic engine noises, a trip log, and integration with your Apple Watch and Dynamic Island. It offers a variety of engine types and a manual mode for interactive sound creation.
What's New in Sonus
1.1
October 25, 2026
• Speed reads in mph, with a 0–60 timer, where roads are signed in miles — the US, the UK and a few others. • Traditional Chinese. • The privacy policy is now in Settings, and a short privacy notice appears on first launch. • Restore purchase is more reliable.
MoreSubscriptions & In-App Purchases
$4.99
Full Unlock
All seven engines, unlocked for good.
FAQ
What is Sonus - Vroom?
Sonus - Vroom is an entertainment app that uses your phone's accelerometer to generate realistic engine sounds based on your acceleration. It offers various engine types and features like a trip log and Apple Watch integration.
Does Sonus - Vroom have ads?
No, Sonus - Vroom is ad-free. The app is free to download with one engine, and all seven engines can be unlocked with a single in-app purchase, with no subscriptions or advertisements.
How does Sonus - Vroom work?
The app's accelerometer samples acceleration 100 times per second, which Sonus uses to create virtual revs, gears, and engine load. It then builds sound from eight looping layers per engine, crossfaded and varispeed-shifted for realistic pitch tracking.
What engines are available in Sonus - Vroom?
Sonus - Vroom includes seven engine types: V8, V12, turbocharged inline-six, four-cylinder, flat-six, electric motor, and a V-twin. Each engine has its own unique idle, redline, and gearbox characteristics.
Can I use Sonus - Vroom offline?
The app's core sound generation runs on the device, meaning it does not require an internet connection for basic functionality. GPS is used to correct speed estimates, but the sound generation itself is offline-capable.
What devices does Sonus - Vroom support?
Sonus - Vroom is available for iPhone and Apple Watch. The Apple Watch companion app allows you to start and stop the sound from your wrist, featuring a rev ring.
How is the sound quality in Sonus - Vroom?
The sound is synthesized in real-time and is not pre-rendered, ensuring no two drives sound exactly the same. Features like GPS correction, calibration pulls, and latency compensation are used to ensure accurate and well-timed sound output, even with Bluetooth speakers.
What is the age rating for Sonus - Vroom?
Sonus - Vroom has an age rating of 4+. The app focuses on sound simulation and does not contain any inappropriate content for younger users.