Maintaining servers for free is painful. And the solutions available for free (Heroku, OpenShift, etc.) are not reliable for tasks of this importance where the server needs to be up all the time.
On the other hand, I have already been using Google Calendar for meetings, events, etc. and it has a great API too. Hence, it's now best to use Google Calendar for ping-me.
Maintaining servers for free is painful. And the solutions available for free (Heroku, OpenShift, etc.) are not reliable for tasks of this importance where the server needs to be up all the time.
On the other hand, I have already been using Google Calendar for meetings, events, etc. and it has a great API too. Hence, it's now best to use Google Calendar for ping-me.