Citizenme
Most surveys you don't get paid for but every now and then you get surveys where you get paid to do. The smallest amount I've been paid for to do a survey was 0.10 Pence and the most has been 0.50 Pence.
It's a free sign up. All you need is Paypal and you sign into Paypal when you get given your first payment to do a survey.
I give you my word this is totally safe. The Surveys literally take seconds to do. Plus most of the questions that you have to answer are automatically answered. What I mean is once you've answered personal questions: Your Gender, The country you live in. Your age. When those questions appear in other surveys they are automatically answered.
The one thing is you really need to keep going onto the app a lot of times a day because the paid surveys are a limited time. For what it seems like they don't stay for more than 24 hours long. I'm not extremely sure on that but some that I have clicked on I got a message basically saying that it is unavailable anymore and that I ran out of time to do it and that they are making a new paid one for you.
Anyway if you are looking for an extra penny in the bank Citizenme is good for that.
What I most like about this app is that it is paid right there and then.
What I dislike is that it does take awhile to get a paid one. For me the surveys paid and none paid usually come late morning early afternoon.