The ONLY To Do app in the App Store that can alert you when a task is due, and lets you assign a task to others or accept tasks sent to you from a friend or family member via the web or another iPhone. Unique Functions only this app offers: * Get alert before task start or due time. * Assign a task to another openToDo user. * Family, friends and co-workers can send to-do items directly into your openToDo app. You may accept or reject them. They may send a to-do to you either using the openToDo app or from the web at http://opentodo.wizag.com/* Enter to-dos on a computer for easy typing and have them show up on your iPhone* Edit to-dos in landscape mode for easy typing* Organize to-dos by dates, by lists and by statusThese functions are must-haves for a to-do app, and this app is the only one providing them all.* And many other standard task management features such as task types, priorities, recurrence, etc.This app offers much more than any other to-do apps but it is priced at 50% of the price of "Things" and "To Do".