Not sure I see the point of the Email Protection app. If you care for a product like this, you would enable 2 step verification and then there is significantly less chance of this being needed.
For a start, it's not aimed at techies who know what they're doing. More at people who have half a reason to be concerned, but don't have the technical wherewithal to do anything about it. 2 step will work... unless you've enabled the remember option, in which case you have no idea if someone you share a living space with is checking your email on your laptop when you're away from home.