Pretty much any app that advertises itself as a quick way to get money is lying. The only truly reliable app I’ve ever used is Swagbucks, and it will neither make you rich, nor will you get your winnings quickly, but it actually does pay you and never runs out of the gift cards you want.
(Incidentally, it’s been my experience that any app with “luck” or “lucky” in their name is more or less a scam just using you to farm ad clicks. Feel free to correct me if you’ve actually had an experience that wasn’t just a waste of time.)
The only app/websites I’ve actually had decent luck with making any money are NCP and Swagbucks. I also have accounts with Picky Domains and Slogan Slingers, but I’ve only made money from Picky Domains once, and I have used Slogan Slingers once since they switched to making people pay to submit their ideas.