Redline: 0-100 & Speed Tracker
Trip log, records & metrics
About
Transform your iPhone into a powerful performance meter for every drive. Accurately measure acceleration, top speed, g-force, and more with automatic trip logging and personal bests. Enjoy a dynamic dashboard and share your results.
What's New in Redline
1.2
October 16, 2026
Subscriptions & In-App Purchases
Premium Yearly
Pro + Drive Display, billed yearly.
Events
Developer apps
FAQ
What is Redline's main function?
Redline turns your iPhone into a performance meter to measure acceleration, top speed, g-force, and other driving metrics. It also logs trips automatically and keeps track of your personal bests for various measurements.
Does Redline have ads?
Yes, Redline contains advertisements. The Pro version, available as a one-time purchase, offers an ad-free experience along with additional features.
What are the subscription options for Redline?
Redline offers several subscription plans: Premium Weekly at $1.99, Premium Monthly at $4.99, and Premium Yearly at $24.99. These subscriptions unlock additional features and an ad-free experience.
What devices does Redline support?
Redline is compatible with Apple Watch, iPhone, and iPad. It also offers features like Lock Screen and Dynamic Island live trips for compatible iPhone models.
How accurate is Redline's speed and acceleration measurement?
Redline measures acceleration with 1/100 s precision. The app utilizes your iPhone's sensors to provide these detailed performance metrics.
Can I share my driving results with Redline?
Yes, you can share any result with a visually appealing card and a link to the app. This allows you to easily share your performance data with others.
Is Redline suitable for all ages?
Redline has an age rating of 4+. However, the app emphasizes safety, stating that performance runs should only be done on closed tracks and users are responsible for obeying traffic laws.
How often is Redline updated?
The latest version of Redline is 1.2, and it was last updated on October 16, 2026. This indicates recent development and potential for ongoing improvements.
