Here is the link for the Bubble Witch 3 Community but I will try to help you as the answer is the same.
When you switch devices you just need to login with the King or Facebook account you were using on the previous device. Saved boosters and lives will not be move but your level is saved on the serves.
Please see this FAQ for more info and troubleshooting step by step
Hi @jeannemendoza and welcome to our adorable Community š This section is exclusively for Friends Saga. We have a separate section for Bubble Witch Saga 3 and you can reach it on the link below.