I try to avoid screens while playing (phone or computer), otherwise I will get dragged into something else between notifications, links and etc. That's my attention span.
Sometimes if I have no other option for one reason or another, I have Adventuresmith and Mythic GME 2e on my phone (Android). The amazing amount of oracle's available is more than enough for my needs (even if I still keep looking for more, but that's my hoarder side).