Typically it is no problem to take a piece of content and share it with someone on social media, while of course crediting the source.
If users want to share more than a couple of paragraphs or a breakout box, then we would suggest that instead you encourage your friends to download the app itself. There is no cost to download WordGo, and we are always proponents of having the full content and tools at the ready!
If you have any other questions or need any further support, please raise a ticket here to contact a WordGo customer support agent.