Startup cost: $0 - $100

Cash Karma is a rewards app that typically requires no upfront investment to start. Users can begin earning by completing surveys, watching videos, or trying offers, all of which are free. However, for those who want to maximize earnings, a high-end estimate might include costs for a reliable internet connection ($50/month), a smartphone or tablet upgrade ($50), and possibly a small budget for trying out premium offers or subscriptions that might yield higher rewards. Most users report that the app is low-cost, but earnings can be slow, and some optional costs can arise if users want to optimize their setup or try premium features.