DOWNLOADABLE COMPUTER APPLICATION SOFTWARE FOR COMPUTERS AND MOBILE ELECTRONIC DEVICES FOR CREATING TO DO LISTS, CALENDARING EVENTS, POSTING AND EXCHANGING PHOTOS, SCHEDULING TASKS, DELEGATING TASKS TO OTHERS AND REPORTING, AND SENDING AND RECEIVING NOTIFICATIONS AND MESSAGES; DOWNLOADABLE SOFTWARE IN THE NATURE OF A MOBILE APPLICATION FOR CREATING, MANAGING AND ASSIGNING TASKS AND TO-DO LISTS AND REVIEWING PERFORMANCE OR PERSON(S) TO WHOM TASKS ARE ASSIGNED; DOWNLOADABLE SOFTWARE IN THE NATURE OF A MOBILE APPLICATION FOR MANAGING AND CREATING CHECKLISTS, TO-DO LISTS, TASKS, REMINDERS, AND COLLABORATING ON SHARED CHECKLISTS; DOWNLOADABLE SOFTWARE IN THE NATURE OF A MOBILE APPLICATION FOR LISTING, SELLING AND PURCHASING GOODS AND SERVICES IN AN ONLINE MARKETPLACE; DOWNLOADABLE SOFTWARE, NAMELY, A MOBILE APPLICATION WHICH ENABLES USERS TO COMMUNICATE AND MESSAGE EACH OTHER; DOWNLOADABLE COMPUTER APPLICATION SOFTWARE IN THE NATURE OF A MOBILE APPLICATION WHICH ENABLES USERS TO LIST COSTS FOR TASKS AND MAKE PAYMENTS ONCE TASKS ARE COMPLETED BY OTHER USERS