Powertora
In-app purchases
Everyone
info
50+
Downloads
About this app
Powertora turns your car and a 25 Hz GPS sensor into a dyno. One full-throttle
pull and a coast-down on a flat road give you a real power and torque curve —
measured, not estimated.
HOW IT WORKS
Drive a single pull in one gear from low rpm to the limiter, then coast back
down on the same stretch of road. The pull measures how fast your car
accelerates; the coast measures your actual aero, rolling and drivetrain
losses. Because losses are measured — not taken from a generic drivetrain
percentage — the curve you get is crank-equivalent power in metric PS.
Results are corrected for air density (DIN) using the real weather at your
location and time.
HONEST ACCURACY
Accuracy is benchmarked on every change, not asserted once:
• On synthetic engines with a GPS-noise model calibrated from real hardware,
the pipeline recovers peak power within about ±1.3 PS.
• In real road sessions, run-to-run repeatability holds to ~1.3% on a
naturally aspirated test car and ~2.8% on a turbo car.
• Every result carries a quality score and a confidence band, so you always
know how much to trust the number.
How we validate: https://powertora.app/validation
WHAT YOU NEED
An external Bluetooth GPS performance meter (RaceBox or Dragy). Phone GPS is
not accurate enough for a power curve — 25 Hz Doppler speed from a dedicated
sensor is what makes the math work.
FREE FOREVER
• Unlimited measurements and full power/torque curves
• Quality score and "where the power goes" loss breakdown
• Shareable PNG result card and web report link
• Run history on your device
POWERTORA PRO
• Merge 3+ runs into one high-confidence curve with automatic outlier
rejection — the most accurate number the app can produce
• Printable PDF dyno reports
• Before/after comparison exports (tune, intake, exhaust — prove the gain)
• Multi-GPS fusion: record one run with several sensors for extra precision
• Unlimited car garage and road maps (curvature, grade and wind of your run)
Pro is a subscription or a one-time lifetime unlock.
NO ACCOUNTS, NO ADS
No sign-up, no tracking, no ads. Runs are anonymous; your history stays on
your phone. Share a result only when you choose to.
Measure responsibly: use a closed road or track, respect local laws, and
never measure in traffic.
pull and a coast-down on a flat road give you a real power and torque curve —
measured, not estimated.
HOW IT WORKS
Drive a single pull in one gear from low rpm to the limiter, then coast back
down on the same stretch of road. The pull measures how fast your car
accelerates; the coast measures your actual aero, rolling and drivetrain
losses. Because losses are measured — not taken from a generic drivetrain
percentage — the curve you get is crank-equivalent power in metric PS.
Results are corrected for air density (DIN) using the real weather at your
location and time.
HONEST ACCURACY
Accuracy is benchmarked on every change, not asserted once:
• On synthetic engines with a GPS-noise model calibrated from real hardware,
the pipeline recovers peak power within about ±1.3 PS.
• In real road sessions, run-to-run repeatability holds to ~1.3% on a
naturally aspirated test car and ~2.8% on a turbo car.
• Every result carries a quality score and a confidence band, so you always
know how much to trust the number.
How we validate: https://powertora.app/validation
WHAT YOU NEED
An external Bluetooth GPS performance meter (RaceBox or Dragy). Phone GPS is
not accurate enough for a power curve — 25 Hz Doppler speed from a dedicated
sensor is what makes the math work.
FREE FOREVER
• Unlimited measurements and full power/torque curves
• Quality score and "where the power goes" loss breakdown
• Shareable PNG result card and web report link
• Run history on your device
POWERTORA PRO
• Merge 3+ runs into one high-confidence curve with automatic outlier
rejection — the most accurate number the app can produce
• Printable PDF dyno reports
• Before/after comparison exports (tune, intake, exhaust — prove the gain)
• Multi-GPS fusion: record one run with several sensors for extra precision
• Unlimited car garage and road maps (curvature, grade and wind of your run)
Pro is a subscription or a one-time lifetime unlock.
NO ACCOUNTS, NO ADS
No sign-up, no tracking, no ads. Runs are anonymous; your history stays on
your phone. Share a result only when you choose to.
Measure responsibly: use a closed road or track, respect local laws, and
never measure in traffic.
GPS dyno: measure real power and torque with a RaceBox or Dragy sensor
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesLocation, Financial info, and Device or other IDs
- Data is encrypted in transit
- You can request that data be deleted
What’s new
• Share your result on a photo of your own car, framed how you like
• Every shared card carries a code that opens the full report
• Export a photo card, a data card, a PDF, or just a link
• Results show the expected accuracy of your peak figure
• Results warn you when drag was assumed instead of measured
• Fixed an automatic pull that could not be stopped by hand
• Fixed uploads timing out too early on a slow connection
• Vibration cues now work correctly on iPhone
• Every shared card carries a code that opens the full report
• Export a photo card, a data card, a PDF, or just a link
• Results show the expected accuracy of your peak figure
• Results warn you when drag was assumed instead of measured
• Fixed an automatic pull that could not be stopped by hand
• Fixed uploads timing out too early on a slow connection
• Vibration cues now work correctly on iPhone
App support
About the developer
Sergei Belov
limitium@gmail.com
PCT MANUEL GUSTAVO BORDALO PINHEIRO , 3
2500-273 CALDAS DA RAINHA
Portugal