You can think of SquidHub as an easy-to-use alternative to Todoist. Which comes with a team messenger, file sharing and a calendar on top.
We may not provide as many features as Todoist, however, we build our product around a 'Simplicity' philosophy in order to provide a platform which your end users will immediately understand how to use - and without sacrificing important features.
And for the pricing: many of the features you'll have to pay for in Todoist comes for free in SquidHub.
Update: With the release of the Premium Plan, the Free version of SquidHub now offers two groups/projects while Premium users can create as many groups as they want.
Check the pricing and how it compares to other products: