Some smartphone applications already offer a lot of micro-tasking services in return for cash or credit. Just by doing a special task given in the app, you can earn money. Want? An example of the application is a Snapcart that will give you cashback from the shopping cart you are photographing, or Cashtree that gives you credit if you frequently open the smartphone key
So Influencer
In the middle of the era of the Internet of Things, vendors and manufacturers began to glance at business over the internet. Well, if you are a celebrity in social media and have a lot of followers, you can really earn money with just a snack capital smartphone. By endorsing the product in your social media account, it is guaranteed that you will get extra pocket money with ease.
it's also helpful, but i was talking about app develepment.