The app will allow you to do this if your tasks are compatible. Toodledo does not support subtasks within subtasks, so you first need to make sure all of your tasks within your Google account are either at the top level, or only one level below the top. This includes completed tasks.

If you are using subtasks, you will also need a Paid Toodledo account in order for them to sync. You can review the fees and sign up for a Paid account at www.toodledo.com.

Once you have confirmed your tasks are compatible, do the following to perform the transfer.

1. Open Ultimate To-Do List on your Android device, then go to the settings are and tap on “Account Management”.
2. Select the name of the account containing your Google tasks, and choose the “Unlink from Google” option.
3. Once the tasks have been unlinked, choose the option to link to a Toodledo account. (If you still have any tasks that are not compatible with Toodledo, the app will warn you and not establish the link.) In this step, make sure you are updating the existing account rather than creating a new account link.
   
4. Your tasks will appear in your Toodledo account after the next full synchronization.