Based on the new features in iOS 9, we have developed an application that you can easily work and switch between the two accounts at once for the Facebook. You do not need to sign out.
This app will help you sign in 2nd account and it will interact with Facebook app where you have logged in 1st account. The switch will be very easy on the new features in iOS 9.
Note: The app only works from iOS 9+
We have developed an app so you can easily switch between accounts.
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