Something wrong with a run, a purchase, or a ship? Write and include your phone model and system version.
All worlds, and the special paints, trims, and engine glows, are kept by the App Store or Google Play for the account that bought them.
The store account has to be the one that paid. Speed, handling, and boost upgrades are bought for one ship and are saved on that phone. Deleting the app removes those. The store can still restore worlds and finishes.
Fly through the world before it in a real run. A test flight from the builder does not open the next shaft. You can also unlock every world at once from the locked-world sheet.
The scores list on this version is stored on your phone. Deleting the app deletes that list, your ships, and the upgrades that lived only on the device.