Promoting on mobile? About to launch your first mobile campaign?
Well, I believe the stats below might interest you a lot 
According to Lindsay Sow, Mobile UX Engagement Manager, Google
http://searchenginewatch.com/sew/study/2435577/nine-useful-mobile-stats-from-clickz-live-chicago-2015
1. More than 51% of all digital time is now spent on mobile.
2. Average time spent per day on digital devices is now 5.38 hours per day and an average 'mobile moment' is 60-70 seconds per usage, meaning an average person checks their phone 150 times per day.
* So the way I see it, you guys got plenty of 'mobile moments' when users can be exposed to your promotion worldwide. When you design your promotioncontents, you should aim to suit this time intervals to help your campaign perform well.
Good luck !
ilana