Beta Now Open · Android

Dynotrix Your Pocket Dyno

Real performance metrics, anywhere.
Measure 0–100 km/h, ¼ mile ET, wheel BHP and torque using only your phone's GPS and sensors. No OBD dongle. No dyno booking.

0–100
km/h timing
¼ mi
ET + trap speed
BHP
at the wheels
GPS LOCK RESULTS
0 – 100 KM/H
5.8s
★ PERSONAL BEST
¼ Mile ET
14.2s
Trap Speed
158km/h
Peak BHP
312bhp
Peak Torque
428Nm
GPS LOCK 00:08.34 94% CONF
SPEED
87
KM/H
2.1s
0–30
4.1s
0–60
0–100
■ STOP

Physics in your pocket.

Dynotrix fuses GPS Doppler speed data with accelerometer readings through a multi-stage signal processing pipeline to produce dyno-grade estimates — without any specialist hardware.

📡

Sensor Fusion

GPS Doppler speed is merged with accelerometer data through EMA and low-pass filters to eliminate road vibration and produce a smooth, accurate velocity signal.

🚀

Precision Launch Detection

A 1-second stationary window detects the precise standstill. Launch moment is sub-frame interpolated to eliminate roll-out distance, giving accurate 0–100 times.

Newton's Laws

Using F = ma, τ = F × r, and P = F × v, Dynotrix derives wheel force, torque, and power at every timestep. Peak values give you real wheel BHP and Nm.

Every number that matters.

0–100 km/h & 0–60 mph

Sub-frame precision launch detection with trapezoidal distance integration

🏁

Quarter Mile ET & Trap Speed

Full 402.336m distance tracking with interpolated finish-line crossing

💪

Peak Wheel BHP & Torque

Derived from measured mass acceleration. Requires vehicle kerb weight.

🎯

6-Factor Confidence Score

GPS quality, continuity, sensor stability, vibration, slope, and consistency — weighted to give you a single reliability rating per run.

0 – 100 KM/H
5.8s
0.4s faster than last run
★ NEW PB
¼ Mile
14.2s
Trap Speed
158 km/h
Peak BHP
312 est.
Peak Torque
428 Nm
0–60 ft
1.9s
Peak G
0.61 G
DATA CONFIDENCE EXCELLENT · 88%

Built on solid foundations.

Production-grade Flutter architecture with a clean separation between the sensor pipeline, domain services, and UI layer.

🐦
Flutter + Dart
Android-first, cross-platform ready. Single codebase.
🎯
Riverpod 2
StateNotifier providers for reactive, testable state management.
🗄️
SQLite
Built-in Android storage. Zero setup, no code generation needed.
📡
GPS + IMU Fusion
geolocator + sensors_plus with EMA and IIR signal filtering.
📈
fl_chart
Real-time speed telemetry chart with 10-second rolling window.
🧭
GoRouter 14
ShellRoute bottom nav + modal routes for paywall and prep screens.
💰
AdMob + IAP
Free tier with banner ads. Pro unlocks unlimited history + compare.
🧪
Unit Tested
Physics-validated tests: 0.5G → 0–100 in 5.66s ± tolerance.

Free to start.

Core timing features are always free. Go Pro for unlimited history and run comparisons.

Free
$0
forever
  • 0–100, 0–60 mph timing
  • ¼ mile ET + trap speed
  • Wheel BHP & torque
  • Confidence scoring
  • 7-day run history
  • Multiple vehicle profiles
  • Unlimited history
  • Run comparison
  • Ad-free experience
⚠️
Safety first, always. Performance testing must only be conducted in a safe, legal, controlled environment — such as a private circuit, closed road, or officially sanctioned drag strip. Never use this app on public roads while traffic is present. Dynotrix estimates are for informational purposes only. All figures are labelled as estimates. The user is solely responsible for their safety and the safety of others at all times.

Early Access

Join the Beta.
Shape the app.

Be among the first to test Dynotrix on your Android phone. Free access to all Pro features during the beta. Your feedback directly influences what we build next.

All Pro features — free No credit card required Direct line to the dev team Android 8.0+ required
Join the Beta Test Now See pricing

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