In the Android app, you can link the following social networks:
Facebook (can be used to access your account once connected);
Google+ (can be used to access your account once connected);
To link a social network in the Android app, please follow these instructions:
Open the Planner 5D app on your Android device. Click the burger menu icon in the upper left corner and then Settings (a little Gear icon).
In the Profile section, you can connect Facebook, Google+, and VK accounts to your Planner 5D account. That would allow you to log in to your account using the social network of your choice.
Click the Connect button and follow the instructions on the screen.