Pi Reminder is described as 'Quickly add future tasks and reminders for Others and yourself. Setting Bill reminder for your spouse, Task reminder, call reminder, Water intake Repeat reminders, Birthday reminder or any kind of Public reminder you wish everyone should know, maybe a World cup match or your' and is a todo list manager in the office & productivity category. There are more than 10 alternatives to Pi Reminder for a variety of platforms, including iPhone, Mac, Android, iPad and Linux apps. The best Pi Reminder alternative is Todoist, which is free. Other great apps like Pi Reminder are sleek, Things, Toodledo and Todo.txt.