A few days ago I made two posts re. various problems my users were having installing beta apps from a particular service asking for help or suggestions. I did not receive any answers. After a couple of days, I tried another service which worked fine for all my testers. I posted these results as answers to my own questions.
Today I see that both questions mentioning the two services have been deleted. Did I violate a stackoverflow guideline? Seems useful to pass this kind of information along. I have NO affiliation in any way with either service.