OBD Ninja: OBD2 MPG, JDM Chime

skyphic studio

In-app purchases

About this app

OBD Ninja: Visualize Your Drive

OBD Ninja is the ultimate drive companion app that turns your car's hidden OBD2 data into beautiful, real-time visuals. Just connect an ELM327 Bluetooth LE OBD2 adapter and instantly monitor speed, RPM, fuel economy (MPG), and G-force on a live dashboard.

From daily commutes and weekend road trips to track days, OBD Ninja records your drive with GPS logs, dash cam footage, and telemetry overlays — so you can replay every drive and review your driving with precision data.

【Key Features】

■ Dash Cam with Telemetry Overlay
Record your drive with live OBD2 data — speed, RPM, G-force — overlaid directly onto the video. Supports up to 8x playback speed for quick reviews.

■ Fuel Economy Monitor & Coin Alert
Track real-time MPG along with the volume and cost of fuel consumed. Our unique "Coin Alert" plays a satisfying coin sound every time you spend a set amount (e.g., every 10 cents).

■ Drive Log (GPS + OBD2 Tracking)
Synchronize GPS and OBD2 vehicle data to keep a detailed record of your trips. Replay routes on a map and analyze your driving later.

■ Real-Time OBD2 Dashboard
Display live vehicle data directly from your OBD2 port. Choose from various themes and layouts to suit your style.

■ GT View
A specialized HUD display mode inspired by racing games. Multiple gauge layouts are available for a professional cockpit feel.

■ Save Playback as a Video (Screen Recording)
Save the playback screen of any drive log — Dashboard or GT View, exactly as shown — as a video. Tap the screen to stop, and app sounds such as the speed chime are captured too. No subscription required — available to all users.

■ JDM Speed Chime
A faithful recreation of the nostalgic 100 km/h warning chime found in classic Japanese cars (AE86-style) — a tribute to JDM culture that adds a touch of nostalgia to every drive.
With the new "GPS Chime Mode", no OBD2 adapter is required. The chime works on GPS speed alone, with a dedicated screen featuring a map and a large speed readout.

■ Flexible Customization
Fine-tune your experience by adjusting display ranges, units, and more.

■ PC Integration
Seamlessly transfer data to your PC via QR code. Use the desktop companion app to export videos, create timelapses, and manage your drive library.

【Perfect For】
・Drivers who want to visualize fuel economy (MPG) and driving habits
・Owners of ELM327 Bluetooth OBD2 adapters looking for a great companion app
・Anyone who wants a dash cam with real-time telemetry data overlay
・Track day enthusiasts logging telemetry from their car
・Road trip lovers who want to keep GPS logs of their journeys
・Anyone who wants to turn their drive data into a video to share on social media
・JDM culture fans who miss the classic speed warning chime

【Requirements】
Compatible with OBD2-compliant vehicles (OBD-II / EOBD).
Requires a Bluetooth LE (Low Energy) compatible ELM327 OBD2 adapter.
Some features, such as GPS Chime Mode, can be used without an adapter.

Website: https://www.obd-ninja.com/
Terms of Service: https://www.obd-ninja.com/terms
Privacy Policy: https://www.obd-ninja.com/privacy-policy

What’s new

Minor improvement: In GT View settings, the "Show speed in RPM gauge center" switch now appears only in landscape, where it takes effect.