Concenturio is described as 'Freeware alarmer for Windows which reminds you of single or recurrent tasks. The program offers several functions such as showing reminder windows and playing audio files of your own choice' and is a Alarm Clock in the office & productivity category. There are more than 10 alternatives to Concenturio for a variety of platforms, including Windows, Mac, iPhone, Linux and Web-based apps. The best Concenturio alternative is Remember The Milk, which is free. Other great apps like Concenturio are Doit.im, Free Alarm Clock, Digital Clock 4 and Task Scheduler.