G-force metering for any car mount
Mount your iPhone however you like—dash, windshield, portrait, or landscape. Calibrate once, then ForceDot shows live G-force in the right direction while you drive.
Built for a fixed phone in the car
ForceDot is designed for a phone that stays in a holder. After calibration, Accel, Brake, Left, and Right match the vehicle—not just the phone’s screen orientation—so you can mount the device at any comfortable angle.
Any mount angle
Calibrate after mounting so the gauge understands forward and down for your setup.
Live G-force circle
See magnitude and direction at a glance, with longitudinal, lateral, and peak readouts.
GPS track path
Optional on-device track drawn next to the gauge, colored by G-force load as you move.
Portrait & landscape
Use whichever viewing layout fits your mount and driving style.
Calibrate in three steps
- Fix the device Mount the phone securely. Do not move it after calibration starts.
- Hold still ForceDot measures gravity while the car is stationary.
- Drive forward Accelerate gently in a straight line so ForceDot locks the forward axis—then live mode starts automatically.
Free to use
ForceDot is a free app. The developer does not require an account and does not run a ForceDot data-collection server. Location is used only on your device for the track feature if you allow it. Ads may appear through Google AdMob.
Drive safely
Keep your attention on the road. Use ForceDot only where it is legal and safe. If you remount the phone at a new angle, recalibrate so directions stay accurate.