If you uninstall Kingdom Rush Battles, your game progress will be saved in the cloud, as long as you're logged into a connected account. When you reinstall the game and log back into the same account, your progress will automatically be restored—you can pick up right where you left off!
Before uninstalling, make sure:
You're connected to the internet
You've logged into a linked account to ensure your data is backed up
If you didn’t link your account, your progress may be lost. If that happens, contact support@ironhidegames.com for help.