For anyone in need of a digital to-do list, Gmail's integrated Task feature is a compelling choice. Gmail's Task, which also integrates with Google Calendar, is a simple to-do list with subtask features, reminder settings, and color-coding options.
GTasks for Android brings the power of Task to mobile phones. GTasks remains true to the simplicity and accessibility of Gmail's Task, but its greatest feature is its ability to synchronize between your Android phone and your Gmail automatically. No credentials or sign-ins are necessary since it syncs with your Android-registered, primary Gmail account. Users with Android 2.0 and above can sync GTasks with multiple accounts.
An included widget allows you to view tasks easily on your home screen. The ability to share GTasks lists via Facebook, e-mail, or a variety of other options is also a nice feature. GTasks even allows for a local (offline) mode if you don't want to sync your task lists.
Easy to navigate, GTasks permits you to create multiple task lists for various projects. You can toggle among views of all task lists combined in chronological order, individual task lists, and tasks sorted by date, name, or order of preference. The various lists are color-coded so that even if multiple tasks from several lists are due to be completed on a given day, they are easily identifiable. Even better, you can assign vibration and ringtone reminders to tasks.
GTasks is a reliable application with few (if any) faults. If you already use Gmail's Task feature, GTasks is a must-have. If you don't use Gmail, but are searching for a powerful and simple to-do app, GTasks is worth a try--and it might even persuade you to switch to Gmail.