Mark used Swagbucks for a few hours a week to watch videos & complete surveys. He was able to accumulate enough points for gift cards, which helped him pay for his living expenses while attending srummy.sattachool. Also, there are innumerable success stories from people who have used Airbnb to rent out extra rooms or their properties in order to make passive income. By using Airbnb as an extra revenue stream, many hosts have been able to pay off their mortgages or finance their travels. These success stories show the various ways that users have used money-making apps to optimize their income.