PerfExpert vs Race Buddy - How fast are you? Usage & Stats

Turn your smartphone into a powerful onboard dyno! Measure your car’s real engine power and torque with 2% accuracy — all by performing a simple acceleration! Verify the effectiveness of your tuning, remaps, or upgrades with an independent, objective, and affordable solution. ------------- What is PerfExpert? PerfExpert – Car Onboard Dyno & Timer is a professional-grade app that lets you measure your car’s real performance: • Engine power & torque curves • 0–60 mph / 0–100 km/h acceleration times • Quarter mile / 400 m times, and more. All tests are performed using just your phone — no connection to your car required. Results come in detailed reports with interactive charts. ------------- How does the dyno work? 1. Create your car profile Enter key specs like curb weight, tire size, and displacement. If you’re unsure, the app helps you find them. 2. Mount your phone securely No need for OBD or external sensors. PerfExpert uses your phone’s internal sensors to capture acceleration accurately. 3. Perform a full-throttle pull On a flat, straight road, accelerate from low revs to redline in one gear — done! Note: Dyno tests are not compatible with automatic gearboxes that lack a manual mode. ------------- What can you do with PerfExpert? • Evaluate ECU remaps, chip tuning, and intake/exhaust mods • Track changes after hardware upgrades or chassis setup changes • Share dyno reports with your tuner or friends • Export your runs as interactive charts and raw data ------------- Sample reports & FAQ • Featured results: https://www.perfexpert-network.com/results/featured • FAQ: https://www.perfexpert-app.com/faq ------------- Join the community • Facebook page: https://www.facebook.com/PerfExpert • User group & support: https://www.facebook.com/groups/perfexpert/ ------------- Key features • Dyno Test: Accurately measure horsepower and torque. Includes rev limiter detection and power loss modeling. • Correction standards: Apply standard corrections (DIN, SAE, ISO, JIS, CEE) using real-time ambient conditions (pressure, temperature, humidity). • Timed Run Test: Measure acceleration and distance milestones: 0–60 mph, 0–1/4 mile, 0–100 km/h, and more. • High-frequency sensor use: Maximum precision thanks to high-rate accelerometer sampling and advanced smoothing. • Connect to external GPS devices like RaceBox Mini, Mini S, Micro, RaceBox.ru, or VBox Sport for even higher accuracy and features like rolling start dyno runs (requires PerfExpert Pro su). • Share results online with a public web link, viewable on the PerfExpert Network • Custom units: Supports a wide range of units: Hp, Ch, Nm, Ft.lb, m/s², °C, psi, km/h, mph, m, ft, etc. • Results can be exported as TSV data file or PNG image. Privacy Policy: https://www.perfexpert-app.com/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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Race Buddy - How fast are you?

Transform your iPhone into a professional racing performance analyzer! RaceBuddy is the ultimate GPS lap timer and drag racing app for automotive enthusiasts, track day warriors, and performance car fans. DRAG RACING & ACCELERATION TESTING • Measure 0–60 mph, 0–100 km/h, 1/4 mile, 1/8 mile times • Rolling acceleration tests from any speed • Braking performance measurement • Real-time speed display with GPS 25Hz accuracy • Leaderboards to compare your times globally • G-force meter for launch and braking analysis LAP TIMER & TRACK DAY COMPANION • Professional GPS lap timing with sector splits • Automatic circuit detection at 1000+ tracks worldwide • Live delta timing shows real-time lap improvements • Ideal lap calculation from your best sectors • Track maps with racing line analysis • Session comparison and telemetry overlay VIDEO & DATA OVERLAY • Record HD video with synchronized telemetry data • Overlay speed, G-forces, lap times, temperatures • Export videos with professional gauges and metrics • Share your best runs on social media • Picture-in-picture track map display ADVANCED TELEMETRY & ANALYSIS • Density altitude calculations for accurate tuning • Weather data integration with temperature tracking • Detailed session history and statistics • Export data in VBO format for further analysis • Compare multiple runs side-by-side ONLINE LEADERBOARDS & COMMUNITY • Global leaderboards for lap records • Filter by car make, model, and modifications • Compete with drivers worldwide • Share sessions with the RaceBuddy community EXTERNAL DEVICE SUPPORT Compatible with professional GPS devices: • RaceBuddy ONE (25Hz GPS included in free plan, device sold separately) • RaceBox.cc (10Hz GPS) – PRO • Dragy (10Hz GPS) – PRO • RaceHF Bean – PRO NOTE: External GPS device is required. The phone’s GPS does not provide precise results. For best accuracy, RaceBuddy ONE is available at http://www.rbuddy.io VEHICLE MANAGEMENT • Detailed car profiles with specifications • Track multiple vehicles • Performance history by car • Power-to-weight calculations KEY FEATURES: • Works with iPhone's internal GPS or external devices • Metric and imperial units • Offline mode – no internet required at track • Automatic session backup to cloud • Regular updates with new tracks and features Perfect for: • Track day enthusiasts • Autocross and time attack drivers • Drag racing competitors • Driving instructors and students • Performance car owners • Motorcycle riders Professional GPS Timing Made Simple. Whether you're chasing personal bests at your local track, competing in time attack events, or testing your car's acceleration, RaceBuddy provides professional-grade timing and analysis tools in an easy-to-use package. Disclaimer: For closed-course and track use only. Always prioritize safety. Not intended for street racing or high-risk driving. Drive responsibly and obey all traffic laws. Join thousands of racers worldwide improving their lap times and drag racing performance with RaceBuddy! RaceBuddy App uses Apple’s standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/