Lowest price: Free a year ago (-100%)
This app transforms your smartphone into a precise G-meter, measuring and visualizing real-time acceleration forces during driving. It records driving sessions, analyzes trajectories, and supports voice memos for detailed driving reflection.
2.1.0
June 6, 2026
- Added mph speed display support - Refreshed the design
G-G Diagram is a professional application that turns your smartphone into a high-precision G-meter. It measures and visualizes longitudinal and lateral acceleration (G-forces) in real-time during driving.
G-G Diagram measures and analyzes longitudinal G, lateral G, cornering, braking, and throttle operation. It also supports accelerometer and gyrometer sensor data.
Yes, G-G Diagram allows you to record, save, and export your driving sessions. It also includes GPS location-based trajectory and route recording.
Yes, G-G Diagram offers multi-language support, including Japanese and English, to cater to a wider range of users.
G-G Diagram is a paid application priced at $0.99.
G-G Diagram is supported on iPhone and iPod devices.
The latest version of G-G Diagram is 2.0.0, and it was last updated on January 6, 2026. This indicates a relatively recent update.
No, G-G Diagram does not contain advertisements.
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