# Powertora

> GPS dyno: measure real power and torque with a RaceBox or Dragy sensor

Canonical page: [https://chrome-stats.com/d/app.powertora](https://chrome-stats.com/d/app.powertora)

## Overview

- **ID:** `app.powertora`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** limitium
- **Category:** AUTO\_AND\_VEHICLES
- **Downloads:** 98
- **Version:** 1.5.1
- **Last updated:** 2026-09-04
- **First published:** 2026-07-10
- **Publisher country:** PT
- **Size:** 56 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=app.powertora)
- **Website:** [https://powertora.app](https://powertora.app/)
- **Privacy policy:** [https://powertora.app/privacy/](https://powertora.app/privacy/)

## Description

Powertora turns your car and a 25 Hz GPS sensor into a dyno. One full-throttle<br>pull and a coast-down on a flat road give you a real power and torque curve —<br>measured, not estimated.<br><br>HOW IT WORKS<br>Drive a single pull in one gear from low rpm to the limiter, then coast back<br>down on the same stretch of road. The pull measures how fast your car<br>accelerates; the coast measures your actual aero, rolling and drivetrain<br>losses. Because losses are measured — not taken from a generic drivetrain<br>percentage — the curve you get is crank-equivalent power in metric PS.<br>Results are corrected for air density (DIN) using the real weather at your<br>location and time.<br><br>HONEST ACCURACY<br>Accuracy is benchmarked on every change, not asserted once:<br>• On synthetic engines with a GPS-noise model calibrated from real hardware,<br>  the pipeline recovers peak power within about ±1.3 PS.<br>• In real road sessions, run-to-run repeatability holds to ~1.3% on a<br>  naturally aspirated test car and ~2.8% on a turbo car.<br>• Every result carries a quality score and a confidence band, so you always<br>  know how much to trust the number.<br>How we validate: https://powertora.app/validation<br><br>WHAT YOU NEED<br>An external Bluetooth GPS performance meter (RaceBox or Dragy). Phone GPS is<br>not accurate enough for a power curve — 25 Hz Doppler speed from a dedicated<br>sensor is what makes the math work.<br><br>FREE FOREVER<br>• Unlimited measurements and full power/torque curves<br>• Quality score and &quot;where the power goes&quot; loss breakdown<br>• Shareable PNG result card and web report link<br>• Run history on your device<br><br>POWERTORA PRO<br>• Merge 3+ runs into one high-confidence curve with automatic outlier<br>  rejection — the most accurate number the app can produce<br>• Printable PDF dyno reports<br>• Before/after comparison exports (tune, intake, exhaust — prove the gain)<br>• Multi-GPS fusion: record one run with several sensors for extra precision<br>• Unlimited car garage and road maps (curvature, grade and wind of your run)<br>Pro is a subscription or a one-time lifetime unlock.<br><br>NO ACCOUNTS, NO ADS<br>No sign-up, no tracking, no ads. Runs are anonymous; your history stays on<br>your phone. Share a result only when you choose to.<br><br>Measure responsibly: use a closed road or track, respect local laws, and<br>never measure in traffic.

## Rankings

- #2,008,989 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK`
- `android.permission.INTERNET`
- `android.permission.MODIFY_AUDIO_SETTINGS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.RECORD_AUDIO`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.VIBRATE`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `app.powertora.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`

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Source: [Chrome-Stats](https://chrome-stats.com/d/app.powertora)