amazing G force app
Don't be confused by the Japanese name. It supports English.
まさに求めていたアプリ
長年こういうアプリが欲しいと思っていました。これを使ってより良いドライビングテクニックを身につけます！
$2.99 $0.99
Lowest price: Free a year ago (-100%)
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About
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.
✓Real-time G-force display
✓Driving trajectory visualization
✓Session recording and data export
✓GPS route recording
✓Voice memo function
✓Sensitivity adjustment and calibration
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What's New in GTrace
2.2.1
August 28, 2026
Landscape orientation is back, for use with a car mount. - Restored landscape display on iPhone - Fixed the Save button being hidden when saving a recording in landscape
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FAQ
What is G-G Diagram?
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.
What driving data does G-G Diagram measure?
G-G Diagram measures and analyzes longitudinal G, lateral G, cornering, braking, and throttle operation. It also supports accelerometer and gyrometer sensor data.
Can I record my driving sessions with G-G Diagram?
Yes, G-G Diagram allows you to record, save, and export your driving sessions. It also includes GPS location-based trajectory and route recording.
Does G-G Diagram support multiple languages?
Yes, G-G Diagram offers multi-language support, including Japanese and English, to cater to a wider range of users.
How much does G-G Diagram cost?
G-G Diagram is a paid application priced at $0.99.
What devices is G-G Diagram compatible with?
G-G Diagram is supported on iPhone and iPod devices.
How often is G-G Diagram updated?
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.
Does G-G Diagram have ads?
No, G-G Diagram does not contain advertisements.
