ForceDot
G Force Meter
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Any mount angle. Calibrate once. Live G-force + GPS track while you drive.
ForceDot turns your iPhone into a driver-oriented G-force meter for the road or track.
Works with any mount orientation
Fix your phone in the car however you like—dash, windshield, portrait, or landscape. After a quick calibration, ForceDot learns which way is forward and down for your setup, so Accel, Brake, Left, and Right stay correct even if the device isn’t sitting flat.
How calibration works
1. Mount the phone securely and leave it fixed
2. Hold still so ForceDot measures gravity
3. Accelerate gently in a straight line to lock the forward axis
Then you’re in live mode automatically.
What you get
1. Live G-force circle with magnitude and direction
2. Longitudinal, lateral, and session peak readouts
3. Auto-scaling gauge when peaks go beyond the current range
4. GPS track path drawn beside the gauge, colored by G load
5. Layouts for both portrait and landscape viewing
Built for real driving
ForceDot is meant for a phone that stays in a holder. Don’t move the device after calibration—if you remount at a new angle, recalibrate so directions stay accurate.
Drive safely. Use only where it’s legal and you can keep your attention on the road.
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The developer, Cho Ming Tse, 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
- Provider
- Cho Ming Tse
- Size
- 5.9 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.5 or later.
- iPhone
Requires iOS 26.5 or later. - Mac
Requires macOS 26.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.5 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Cho Ming Tse