Why do I have to go to the Google Play store periodically and check whether there is a newer version of the Logos app. Why isn't this check done automatically by the app, and an opportunity to update given to me when I launch it?
I think that you just have to check the auto update box, mine updates automatically.
Like Mike said, there should be a setting in Google Play to allow automatic updates for each app (or for all apps). Then I think it will only check for and download updates when you're connected to wifi (although there may be a setting for that too).
I think that you just have to check the auto update box
To see this "Auto-Update" check box: