I don't know anything about this one but just heard of it. I'm not clear if it's open for users yet or not but it might be worth checking into. It looks like MTurk-type tasks on your phone but you get paid in Bitcoin. Someone give it a shot and report back!
Disclaimer: I've just found out that the CEO of this company is Balaji Srinivasan, who is a Trump supporter and at this moment, on Trump's short list to run the FDA. I wanted to mention it in case people felt strongly about not working for a business that is run by pro-Trump folks.