So how many dwellers can go into the wasteland exploring before the game becomes unplayable. I play on an iphone 5s and at 50+ MAX stat dwellers exploring, I crash halfway viewing explorer progress. What about you?

I have 50 currently on my iPad Air retina ... I found my crash rates are higher if I do too many different things in one session ... to review my full 50 I exit the app, flip it off the screen, and restart ... I can make it through the full 50 usually if I do that ... however, if I view the list after I have been rushing rooms or managing inventory (without restarting the app) I have noticed a higher incidence of crashing before I make it through all 50 ... not sure of the specific memory interactions that cause that

Problem sounds just about identical to mine. Thanks again Kbrickley!