GT7 Tuning Calculator
Race Setups for Gran Turismo
$5.99 · Designed for iPad. Not verified for macOS.
The complete car-tuning companion for Gran Turismo 7. Enter the handful of numbers you can read off any car — weight, power, drivetrain, tyres — and copy back a full settings sheet that drops straight into the game's Fully Customisable parts.
EVERY SETTING, NOT JUST SPRINGS
• Suspension: body height, natural frequency in Hz, anti-roll bars, compression and expansion damping
• Alignment: negative camber and toe angle, in the game's In/Out convention
• Differential: initial torque, acceleration and braking sensitivity per driven axle, plus the 4WD torque split
• Brakes: front/rear balance matched to your weight distribution
• Downforce: front and rear targets as a share of your car's slider range
• Transmission: a top-speed slider target, plus the final-drive trick explained
• Ballast weight and position for PP and BoP targets
TUNED TO YOUR CAR, NOT A PRESET
Five drivetrain layouts (FF, FR, MR, RR, 4WD), all nine tyre grades from Comfort Hard to Racing Soft, and six build types — race, road, sport, drift, drag and dirt. Every formula scales with your car's real weight, power and weight distribution, and every output already sits inside GT7's true slider ranges.
DIAL IN THE BALANCE
One slider moves the whole tune between stability and rotation. Springs, anti-roll bars, toe, differential, brake bias and downforce shift together — the way a race engineer would move them, not one slider at a time.
YOUR GARAGE
Save a tune for every car you run. Search it, duplicate it for a new build, and reload it on the grid before each race.
KNOW WHY, NOT JUST WHAT
The built-in guide explains what every GT7 setting actually does, in plain language — and gives step-by-step fixes for understeer and oversteer on corner entry, mid-corner and exit.
WORKS THE WAY YOU PLAY
• One price, everything included — no subscription, no ads, no account
• Fully offline: tune in the lobby, on the grid, anywhere
• Available in 38 languages
• kg or lb, HP, PS or kW, km/h or mph — match what your game displays
GT7 Tuning Calculator is an independent companion app. It is not affiliated with, endorsed by, or sponsored by Polyphony Digital Inc. or Sony Interactive Entertainment. Gran Turismo is a trademark of Sony Interactive Entertainment LLC.
Ratings & Reviews
Thank you for the feedback — this update fixes what you reported.
• Now in all 38 languages. The app follows your iPhone's language automatically; version 1.0 shipped English-only by mistake.
• The Garage saves every setup. Each tune you save is kept as its own entry — before, saving replaced the previous one.
• Damper values match the game. Compression and expansion now stay inside GT7's real slider ranges, 20–40 and 30–50. Some setups, especially on Comfort tyres and dirt builds, used to show numbers the game would not accept.
• Better front-to-rear spring balance. Natural frequency now sets the rear slightly stiffer than the front for a flatter ride, matching how GT7 arranges its own front and rear ranges. Weight distribution now drives the anti-roll bars, where it belongs.
• The in-app guide has been updated to match.
The developer, Alex Gameli Heyman, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Alex Gameli Heyman
- Size
- 6.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 32 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © Innova Apps
