What sort of things do you do on usercrowd? Never heard of it but just applied there.
It used to be called 'Usuabilityhub' not sure there is a thread on the money shed, I am sure somebody will know (I haven't been here long). You basically review apps and websites by answering whatever question the developer throws at you. As an example they may ask you on how they can improve their website/app. It usually requires you to write a sentence or two on improvements you can make etc. There are multiple choice questions as well which is easier. Basically put, website developers and app developers ask for feedback on specific parts of their designs.
Apologies if I haven't explained this well lol, I would easily be able to do it in person.
I would note that you need to get $10 dollars to be able to cash out to Paypal. I make this every month so think of it as an easy £7.50ish a month. The tests are really quick (longest I have done is 5 minutes) it seems you get paid $0.10 per minute. So £0.075 per minute in pounds so £7.50 per hour. Ill let you decide if its worth it.
Another bonus is you can setup your google chrome to be able to get notifications, as to when, new tests are ready to take. So no need to keep a tab open, although I do just for sake of ease.
The major negative is it takes up to 30 days to actually get your money. But they are legit for sure. I do not mind this, as I get money from various websites. If you have any more questions, I will try my best to answer lol.