Anyone can enter this growing market with just a smartphone and an internet connection. In light of economic uncertainty, more people are looking for alternative sources of income, whichrummy 9 has been further fueled by the gig economy's growth. It is clear from looking at the different types of high-earning apps that the digital economy is changing our perceptions of work and earning money. There is probably an app that will work for you, whether you are a professional trying to diversify your sources of income or a student looking to earn some extra cash.