Parallel Space is a free tool for Android that allows you to run multiple accounts in one app at the same time, such as Facebook.
Most users maintain more than one account on a social network, such as Twitter or Facebook, or have multiple Gmail accounts. Although we are not concerned with the reasons that each user takes such actions, at least in this article, we are concerned that most applications for Android do not allow concurrent execution two instances of the same application on the same mobile device.
You should log out of an account in an application and then log in to the same application with another account. This process is very disturbing to most users.
In fact, and especially for social media, not even one desktop with computer you can be logged into two accounts in the same application (excluding Gmail) at the same time. However, this scope is easily overcome for desktop computers since you can connect to different ones browsers in different accounts for the same social network. In smartphones where surfing through broswer is not the best, companies have made special applications for Android that run only one social network, for example Facebook.
If you want to run multiple accounts simultaneously in the same application, there are many tools to help you. Typically, these create a separate space or virtual environment to run an extra portion of the same application at the same time on the same device. One of the most popular tools that have downloaded more than 100 users from the Play Store is Parallel Space.
This tool creates separate environments so you do not need to sign in and disconnect each time you want to use different accounts in the same application.
It works from Android 4.0.3 and up. You can download it Parallel Space - Multiple accounts & Two face from here. Due to the fact that Parallel Space is free within the application you will find ads.