For contractors, this is a complex riddle. Days have just 24 hours. Hours have just 60 minutes. No smartphone app can change that.
So, contractors have to make themselves a mile wide and an inch thick trying to cover everything. For small contractors, this is doubly true. You have contracts, networking, marketing, promotion, billing, accounts payable. Oh, and actual work to do — not just the work that your actual work creates, like billing, or the work that keeps your actual work going, like networking.