Can I add 'viewers' to my account to allow others to see my projects and tasks?
I use todoist for family matters and would like certain family members to see certain projects and tasks (from their smartphone anywhere anytime)
unfortunately, it's not possible to show/hide certain projects for someone accessing your account. You can share one account and even work with it through both the desktop site and the mobile apps at the same time, but everyone will see your full project list.
It is possible to send tasks via email using a different address which would allow someone to send tasks to your account. You can read detailed information about this function by clicking on the envelope icon at the top of your task list in each project.
We are considering integrating both our products - Todoist and Wedoist (a project manager for team-oriented work) and this will eventually introduce such feature, but for now it's not possible.