With My Pins you can view all new My Maps data.
You can create the Maps in new My Maps on your Desktop, than you can view them in this app.
"new My Maps" URL:
https://www.google.com/maps/d/
App features:
- no Ads
- view the placemark with custom icon.
- view the lines and polygons
- show full description when click place mark.
- some edit features with limitation.
- switch to Google Map
- Cache map for offline use
- iOS8 support
This app not support google classic my place.