You Can Also Connect Google Contacts or OneDrive With 1400+ Other Apps
Google Contacts
Google Contacts is an online address book that's built into Gmail and sync'd across all your devices. It is a powerful tool for organizing, finding, and communicating with your contacts.
OneDrive is part of Office 365. It's a place to store your files so you can access them from any device - your phone, tablet or PC. You can also use it to collaborate with others and share ideas.