Trade data shows that millennial and Gen Z retail investors are dominant buyers of side hustle app shares, reinforcing demographic-driven demand forecasts. "We have around 40,000 people working on safety and security globally, with over $30bn invested in this area over the last decade," the spokesperson said,"including by automatically placing teens in the strictest message settings and letting them know when they're chatting with someone who may be in a different country." You can upload designs for shirts, mugs and tote bags to platforms like Redbubble or Printful . Once the design is live, you earn whenever someone buys it. This is a type of dropshipping side hustle that appeals to creatives who want to monetize digital art without keeping inventory. With the rise of AI integration in side hustle app design, investors are betting on improved scalability. Data shows a projected 15% increase in monthly user engagement within the next two quarters.