One of my favorite apps that has always payed out for tasks is Field agent. It has different types of tasks to complete for money amounts. They have different categories to pick from:
The categories I have used most often in my area are the audits and scavenger hunts. Both involve visiting stores such as Target or Wal-Mart and completing a job where you might take pictures of an end cap or find out the amount of stock of an item. The scavenger hunt has you find items by their bar codes and find them in a certain store such as Target or Publix. Most jobs pay from $3.00-6.00 dollars as an average,but I have seen some jobs go as high as $8.00-12.00.
Below is a screenshot of my pay out screen. My total over the past three years is $574.25. I have always been payed quickly into my paypal account and never had any issues.
I can highly recommend this app as a way to make extra money while out shopping or if you need something to do for extra cash. Below is their website to find out more information.
http://www.fieldagent.net/for-agents/
