I don't know if you believe it or not, but there are few apps that allows you to earn cash, vouchers and even apps on your iPhone. I will start with the programs that worked for me in the past, and I will finish with the ones that I have not tried yet.
FreeMyApps allows you to install new apps, and get rewarded for it. Usually, you just need to open the new installed app for 1-2 minutes, and you get rewarded. You get paid via Amazon Gift Card, iTunes Gift Card, Postagram Gift Card, Groupon Gift Card, Fandango Bucks Gift Card. You can also earn points by referring your friends.
FeaturePoint is a program that resemble FreeMyApps. You have to install apps in order to get points. Once you get over 500 featurepoints, you can convert them to popular paid apps, Amazon money, Paypal money or iTunes credit. There is also a special prize if you get 197400 points: a $329 iPad mini 16GB WiFi. My personal target on this service is a $50 gift card (30000 points).
InconZoomer is an app that allows you to upload your pics on the site, and earn credits when it's sold. You can later convert the credit to cash, charity or Paypal money.
Survey.com is a service that allows you to earn cash by completing surveys. It works for areas all over the world, but you'll get better offers if you live inside the US. I earn some cash with this app, but nothing special. Search for it on Apple Store.
Mobilerewards.net this app is rather new. It allows you to earn credits on your iPhone by completing offers, tasks, or watching videos. When you reach 1000 credits, you can turn them into cash or rewards.
Conclusions If you have free time on your hands and you want to convert it into cash, you should try these apps and services.
