For iOS:
http://itunes.apple.com/au/app/pushover-notifications/id5060…
For Android:
https://play.google.com/store/apps/details?id=net.superblock…
This app gives you an gateway/API to send your own push notifications to your phone. See https://pushover.net/
Combine this with "recipes" from http://ifttt.com and you can see the potential, you can receive alerts for all sorts of "channels".
I haven't read all on the website but if you are writing ios app can't you just use the push notification?