After downloading To-Do Adventure from the Apple App Store or Google Play Store and completing the tutorial, you will be asked whether you would like to link your account to a social media account to register. Linking your account allows you to automatically backup all of your to-do list data and sync it with the Fourdesire cloud. This way you don't have to worry if you ever lose or change devices, your to-do lists will still be saved. For this reason we strongly encourage you to register an account. Fourdesire currently offers the following two ways to do this:

1. Use a third party platform to log in. Fourdesire currently supports Facebook, Google, Twitter, Apple, and Weibo logins.

2. If you don't wish to link with a social media platform, you may use your email address to register an account. Please note, you will not be able to change to a different email address in the future once you have registered your account.

Note: If you don't register your account after completing the tutorial, you can still go to the Profile tab on the Menu page and tap Linked Accounts to log in.