You can find a lot of freeware and shareware softwares from internet while searching... I think this is the best answer for your question.
you should definitely try out serverguard24. It was very cheap and the service was excellent they also offer smartphone apps. here is the web presence of svguard: www.serverguard24.com/
i don't remember the exact name. but it's something stat counter. I used it on some of my sites and it did gr8 job. Now I have switched to analytics and its way best