Startup Idea: All-In-One Freelancer Management Software

Startup idea to develop a versatile software platform designed for freelancers and contractors. This tool should facilitate task tracking, scheduling, reminders, and payment processing to help manage their various daily tasks, gigs, and clients efficiently.

I am a freelancer/contractor who provides services to small business, individuals, etc. I have been researching for a platform for quite some time now that would help me keep track my work day to day. I'm not biased if the program is a US based program or a program from another country I could really use some help. The work I do various from day to day. One day I could be scheduling an airline flight, another day I could be working on a project that consists of creating flyers, brochures , etc. for a clients event, another day providing customer service calls for a small business while they are closed for the holidays and the list goes on. I need something to help me sort many different tasks and schedules on a daily basis while keeping everything in order and as well as notify me of the next task/job. Being able to receive and/or issue payments using the same software/program would be even better.