You can also check out http://coin-notifier.com

I've added the option to get notified whenever any coin gets listed on an exchange.   The main difference between these two tools is that the coin notifier notifies you for a specific exchange while cointracker notifies you for all exchanges. Not saying that one is better than the other. It all depends on what the user is looking for.

I've built the same functionality only with email notifications. You can check out http://coin-notifier.com

I've pretty much built the same functionality for myself and it's free. You can check it out http://coin-notifier.com

Same functionality for free: http://coin-notifier.com

You could also try http://coin-notifier.com  It checks every minute and it will never cost a dime