We're wondering if there's research on the engagement levels of different push mediums, i.e. CTR's of email vs. iOS notifications vs. android notifications vs. etc.
Had a google, and a search here, and nothing seems to pop up. If there isn't research, what is your personal experience?
A second, more opinionated, question: Does the engagement level per medium depend on the content, or does one medium always get better engagement?
Edit: Potential answer to first question:
Push provider Xtify has revealed some top-level engagement metrics: 30-60 percent open rates and 4-10 percent interaction rates (with spikes as high as 40 percent). Purely for comparison, this is significantly higher than the level of engagement that could be expected when sending emails (average open rate 20 percent, click-through rate 5.4 percent), although not as high as SMS (studies vary but open rates are typically >95% and click-through rates for URLs where included is often in the high teens).