it would be awesome if the game designers could let the users store the file that keeps track of the boosters in another location so that if the app is uninstalled or switched to a new device, the file with the boosters can be transferred over.
don't know... it's never happened to me... back when I first started, if I ran low on lives, I switched to a different device and kept playing.... the lives would regenerate on the original device by the time lives ran short on the backup... just kept doing it. now with boosters aplenty, I never lose more than 1 life…