Drag. Circuit.
Power. Measured.

Your phone, with Phone Mode (free), plus RaceBuddy ONE, Dragy (Dragy 69, 70, Pro and Lite), RaceBox.cc, RaceBox Mini, RaceBox Mini S, RaceBox Micro, and RaceHF. External devices connect over Bluetooth — no adapters or cables.

The free tier is genuinely useful: full drag suite (0–60, 0–100, 60–100, braking tests, 1/4 mile, 1/8 mile, custom speed pairs, slope correction, density altitude, video with live overlays), full lap timing with sectors, ideal lap, imports and configurable graphs, the AI Smart Garage for cars and bikes, global leaderboards, HD rear-camera recording with default overlays, Laptimer overlay export at 1080p landscape with the default layout, demo mode, and Phone Mode so you can start without any hardware. Pro adds the AI Coach, DIFF + Predicted 1/4 mile, Compare Runs, Power & Torque measurement, Compare Laps, custom track creation and publishing, picture-in-picture and front-camera video, custom branding, green-screen drag export, advanced Laptimer overlay exports (2K / 4K, portrait, custom layouts), premium support, and connection to Dragy, RaceBox, RaceBox.cc, RaceBox Mini / Mini S / Micro and RaceHF.

Yes. Phone Mode fuses your phone's GPS with its motion sensors into a 10 Hz stream, after a one-minute calibration. It is free on iPhone and Android and good enough for real measurements and for Power & Torque. Runs recorded in Phone Mode are marked as such and are not eligible for the leaderboard, DIFF or the 60 ft test — for those, an external receiver is still the reference.

A Pro feature that analyses a whole session corner by corner: it detects the corners, compares your entry, apex and exit speeds and braking points against your best segments, ranks where you lose the most time and writes a short debrief with the one thing to practise next. The analysis runs on your phone; only a compact summary of numbers is sent for the written debrief. It is also available on rbuddy.io for your laps.

Yes. Add your bike to the garage (Aprilia, Ducati, Yamaha, Kawasaki, BMW Motorrad, Honda, Suzuki, KTM, Triumph and more), and every lap gets a lean-angle graph — recorded by RaceBox, or derived from GPS on any device — plus a Classic Bike video overlay layout.

Yes — RaceBuddy is available on Google Play with the same feature set as iOS, including Phone Mode, the AI Coach, video recording with overlays and motorcycle support.

RaceBuddy imports VBO logs and RaceBox CSV track sessions directly as lap sessions, with laps and sectors detected on the track's lines — in the app and on rbuddy.io. Dragy Pro and Lite onboard recordings import too. For MoTeC, EMU, RCZ and RNZ files rendered as video overlays, use RB Overlay, our separate iOS companion app.

Calculations use your vehicle profile (weight, drivetrain loss, gearing, frontal area) and correct for slope, density altitude and rolling resistance. The accelerometer is cross-checked against GPS, and a tilted mount is detected and reported. Treat the result as a comparable measurement, not a dyno replacement.

Open Earn Free Pro in Settings and share your personal code or link. Your friend gets a welcome bonus when they claim it; you earn points when they sign up, record their first run and go Pro. Points redeem for 1, 3, 6 or 12 months of Pro.

Yes. Pro is linked to your RaceBuddy account, so it survives a reinstall or a new phone. Your renewal date is shown on your profile.

It detects the height delta along your run and removes the gravity component from your acceleration so up- and down-slope runs are comparable. There's also a standalone slope calculator at /tools/slope.

Report a problem or suggest a feature from Features & Feedback in the app — logs are attached automatically and you can follow the ticket. Or email office@rbuddy.io. Pro subscribers get priority response.