Is Appen project fake or real?

I've been hearing a lot about the Appen project lately, but I'm still not sure if it's legitimate or not. Could you tell me more about it? I'm particularly interested in knowing if it's a scam or if there's any evidence to support its claims. Additionally, I'd like to know if there are any red flags I should be aware of before investing in or participating in the project. Ultimately, I'm looking for a thorough and unbiased analysis to help me make an informed decision.