Support

Getting started

1. Tap the engine name at the top to choose a vehicle.
2. Drag to rotate and pinch to zoom. Tap a part to move closer.
3. Use playback and speed controls to observe mechanisms in slow motion.
4. Choose Fuel or Power for a guided camera tour along each route.
5. Open Drive to operate the throttle, clutch, and gears.
6. Switch between English and Japanese in the menu. Portrait and landscape are supported.

Purchases and restoration

The inline-four motorcycle and inline-six car are free. Engine Pack Vol.1 unlocks the current five additional vehicles in one purchase (future additions are not included), with no subscription. Confirm the price in Apple's purchase sheet before buying.

If a purchased vehicle is locked, use the same Apple Account as the original purchase and select Restore purchases in the vehicle's purchase sheet. Restoration requires an internet connection.

A purchase awaiting approval unlocks only after approval is received. A refunded or revoked purchase no longer grants access to that vehicle. Refund requests can be made through Apple's Report a Problem page.

Loading or performance problems

Close and reopen the app and check for the latest version. If the loading-error screen appears, select Reload. 3D viewing works offline; price loading, purchases, and restoration require a connection.