Quickbase offers Free Trial, but I'm Productive does not.
I'm Productive is designed for Large Enterprises, Medium Business and Small Business.
Quickbase is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for I'm Productive Starts at $50/Month whereas for Quickbase Starts at $35/user/month when yearly.
Some top alternatives to I'm Productive includes Quickbase , Smartsheet, ClickUp, Freshbooks, Next Please, Wrike, Zoho Projects, monday.com, Teamwork, ProWorkflow, Workep, Worksuite, Watchwork, WirTask, Trackboard, Quick Base, Today, Flowist and Resource Guru.
Some top alternatives to Quickbase includes Smartsheet and ClickUp.