App vanished from Mac and saved projects missing from Account
I've been using Todoist on my Macbook Pro, but all of a sudden the application is missing from my computer, and all of my projects are missing from my account when I log in from the website. What happened? Can my lost projects be recovered?
Were you always connected to the Internet while using the Mac app? This is required for the tasks and projects to be synced with your account and the cloud. Please try searching for Todoist within Finder, to make sure that the app isn't actually hidden somewhere.
Unfortunately, unless you were Premium there are no backups made on your account. The only way this would occur is if the information didn't have a chance to talk with our servers.
Also, I would make sure that you are signing into the same account. If you sign in with Google, this can sometimes create a new account.