Official comment

Your Maps Made Easy account profile has an Access Password in it which allows for account access from 3rd party applications.
Starting in version 3.1 for Map Pilot, you just need to log in to your Maps Made Easy account from the prompt in the app.
The Terrain Awareness feature is part of Map Pilot Business by default but you have to purchase the feature separately in Map Pilot and Map Pilot Lite. You can preview it first before purchase.