Mobile posting: post updates and manage your Page without using a computer.
Messages: read and reply to messages that your customers send to your Page.
Facebook and Instagram: link your accounts to manage Facebook messages, comments on your posts and Instagram comments in one inbox.
Push notifications: get alerts about important activity, and see all of your Page notifications in one place.
Insights: track promotions, stats and activity on your Page so you can build your business.
Anyone who manages a Facebook Page can download and use this app for free.
Facebook Pages Manager