I have groups of more than 100 and keep having to split them in order to send. I don't really understand apps for business because there is too much information. All I want to do is keep my current structure which is that I have 3 google accounts which come through on to my apple computer. Can i apply for a higher limit or do i need to go to business apps? Does this cost? Will I have to make changes to my current setup? Also, isn't an app just for phones?