A free program for Android, by Hide Apps NO ROOT.

Dual Apps is a utility for Android that allows you to run multiple accounts of the same app simultaneously. You can use it to manage your social media accounts and other apps. The utility is designed to make the process of logging into multiple accounts easier. It allows you to use multiple accounts at the same time without having to install the application on your device. 

The utility is compatible with most social media and gaming applications. It can also be used to protect your privacy. It allows you to have a separate identity online, which can be useful when you are involved in a public forum or when you are online in a public place. It is a good idea to have a second account for social media and other apps.