16+ iOS apps curated and reviewed
The best performance gauges apps on iPhone average 4.1★ across 16+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
Turn your smartphone into a powerful vehicle monitoring and diagnostic tool. Track engine performance, fuel economy, and instantly diagnose check engine lights. Features advanced dashboards for performance analysis and off-roading.
This business application helps hospitality professionals analyze performance data to maximize revenue and improve guest experiences. It offers tools for portfolio managers, property managers, and frontline associates to identify key performance indicators, track employee performance, and set individual goals.
Optimize your Harley-Davidson's performance with this powerful flash tuning tool. Easily download pre-tuned maps, adjust fuel and spark settings, and utilize AutoTune for a customized riding experience. Troubleshoot issues by reading and clearing diagnostic codes.
Automated sprint timing for sports cars using GPS. Track performance data like quarter mile times and 0-60 mph with hands-off, automatic measurement. Ideal for drag racing, street racing, and track days.
Transform your iOS device into a virtual dashboard for your vehicle. Monitor engine performance, track fuel economy, and diagnose trouble codes. Customize your display for instant feedback on your car's performance.
Diagnose Harley-Davidson motorcycle issues directly from your iPhone. Access detailed code descriptions, view diagnostic videos, and monitor live sensor data. Save and retrieve your code history for advanced troubleshooting.
This utility app helps network administrators and developers test CDN performance, internet connection speeds, and bandwidth. It offers detailed test history, location saving, and GZIP support for accurate results.
Analyze your DJ set's crowd engagement in real-time using facial recognition. Understand audience emotions, track popular tracks, and improve your performance with data-driven insights and post-session visualizations.
Record driving performance, track routes, and connect with a community of drivers. Features automatic drag detection, navigation, and real-time friend tracking. Supports Apple CarPlay and GPX import for enhanced trip planning.
