TraceG
Visual G-Force Recorder
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turn your phone into a G-meter for dynamic drives. Record live G-force, analyze trips in 3D with speed axis, and get smart ratings — all stored locally.
TraceG turns your phone into a private G-meter for drivers who want to see every road in a more dynamic way.
Many cars do not include a built-in G-force display. TraceG gives you a simple way to record lateral and longitudinal G-force with your phone: mount it securely, calibrate, and start a trip. Acceleration, braking, cornering, and quick transitions are plotted in real time on a clean circular meter.
You can switch between 2D and 3D views at any time. The 2D view shows your G-force trail on a flat map, while the 3D view adds speed as the vertical axis, helping you see how motion, direction, G-force, and speed connect as you drive.
After each trip, TraceG saves a detailed G-profile with peak values, motion trails, trip history, and smart ratings. You can review where the car felt loaded, compare different drives, and export raw data for further analysis.
TraceG is not a driving score and does not judge your behavior. It is built as a personal, local-first driving instrument for people who enjoy the feel of a good road and want the data to match.
Key features:
* Live circular G-meter with lateral and longitudinal G-force
* 3D trip review that adds speed as the vertical dimension
* Peak values for left, right, acceleration, and braking
* Trip history for saved drives
* Raw data export for further analysis
* Local-only data storage
* Local-only data storage, no account, no cloud sync, no 3rd-party tracking
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Jun jiu YING, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jun jiu YING
- Size
- 19.8 MB
- Category
- Navigation
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Japanese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Full Access $2.99
- Copyright
- © 2026 JJ Ying