We highly recommend you to create an account in the game!
Not only you will receive a bonus of Mana -- for FREE -- but you will also enjoy all these benefits:
- Backup your progress online (levels completed, elements unlocked etc)
- Restore your worlds and purchases on any device
- Transfer your account from one device to another
- Create your profile in the game and interact with friends
To create an account, please follow the instructions from this article:
https://thesandbox.helpshift.com/a/the-sandbox-2/?s=how-to-play-the-game&f=how-to-create-an-account-in-the-game