Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Pusher Beams - Send push notifications programmatically at scale

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Notisave - Notisave – Status and Notifications Saver is an exceptional tool created and published by Tenqube Inc.

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

Notin - Notin – notes in notification app helps users in creating alarms to get reminders about important tasks right on the home screen.