G-Force Meter: Accelerometer

G-Force Meter turns your phone into a live accelerometer for the car, the track, the theme park or the classroom. Watch the G-force on every axis, then press Stop to get a session card with your peak G, average G and hardest corner, launch and stop.

LIVE READOUT

• Total G on a round gauge with a direction dot

• Lateral (X), longitudinal (Y) and vertical (Z) values

• Min, average, max and peak, plus peak chips for lateral, accel and brake

• Scrolling chart of X, Y, Z and total G

SESSION RESULT

Start, drive, Stop. The card shows:

• Duration, peak G and average G

• Peak lateral, accel and brake

• A second-by-second G trend line (first 10 minutes)

• With the Car activity: a reading of the drive from Gentle to Very hard

Sessions save to History on their own (last 20). Under 2 seconds is not saved. Switching apps pauses recording in the background and the same session resumes when you come back, and one cut off by the system is recovered on the next launch.

HISTORY

Personal bests, sessions with their trend lines, race runs and rolling runs, all in one place at the top of the Meter screen. CSV export for sessions, runs and rolling intervals. Statistics report CSV unlocks for 24 hours after a short ad.

G-G FRICTION CIRCLE

Lateral vs longitudinal G as a trail inside 0.5 / 1.0 / 1.5 G rings, with peak lateral, longitudinal and combined G.

RACE MODE

• 0-60 mph with raw and rollout times

• 60-0 mph brake test: time, distance, speed shed (sensor estimate)

• Rolling 60-120 mph, 100-200 km/h, 30-50 mph or custom

• GPS 0-60, quarter mile time and trap speed, with a GPS-verified badge when the fix is good

• Regen profile for EVs: braking events estimated as regen or friction by their strength

SETUP

Dash or Holder mount, auto-level, 1G or 0G reference, sensitivity 0.5x to 2.0x for the gauge, activity presets for Car, Roller-coaster, Sport, Elevator and Aircraft, an 8-tip guide, screen kept on while recording, 30 languages.

HONEST LIMITS

Values come from the phone's motion sensor. Mount the phone firmly and level it first. Times without the GPS-verified badge are estimates. Test only where it is safe and legal.