Try Pushbullet. I use it on my forum.
Also search here for pushbullet, there are a number of threads for it.
is it possible to configure email forum notification to conserve the same message ID for the notification of a same topic.
I receive a lot of email and not being able to sort them by thread in my mailer is a problem (and worst on mobile phones mailer).
See here for original post.
Can you show a sample of the emails you get?