Universal Copy is a lightweight tool that lets you easily copy text snippets from any of your running applications. Yes, you can use this software to copy text from apps such as Facebook, Twitter, Instagram, even if they don't allow you to achieve this by default. The tool can be activated inside the notification drawer by tapping the "Activate Universal Copy" button and then open your target application and copy the desired text.
Inside the interface you also find a FAQ page where you can obtain some basic information with regard to this software. In case you want more features, you will have to pay for a subscription and gain access to its Optical Character Recognition module. With this advanced technology you are capable of copying text from apps where the regular mode fails.
This feauture also allows you to extract text from photos, but it has support only for Latin characters.