The concept of "best earning app" can be subjective and can vary greatly depending on your skills, interests, and location. There are several types of earning apps, including survey apps, cashback apps, gig economy apps, investment apps, and more. Here are some popular categories and examples of apps within each category: Survey and Market Research Apps: Swagbucks: This app offers rewards for completing surveys, watching videos, and shopping online. Survey Junkie: It provides paid surveys on various topics. Vindale Research: Offers paid surveys and product evaluations. Cashback and Rewards Apps: Ebates (now Rakuten): Provides cashback for shopping at various online retailers. Ibotta: Offers cashback on groceries and everyday purchases. Fetch Rewards: Earn points by scanning grocery receipts and redeem for gift cards. Gig Economy Apps: Uber: For driving passengers. TaskRabbit: For completing various tasks for others. Fiverr: Freelance marketplace for a wide range of skills. Investment Apps: Robinhood: Allows you to invest in stocks, ETFs, and cryptocurrencies with no commission fees. Acorns: Rounds up your purchases and invests the spare change. Stash: Helps you invest with as little as $5. Cryptocurrency Apps: Coinbase: Buy, sell, and manage cryptocurrencies like Bitcoin and Ethereum. Binance: Offers a wide range of cryptocurrencies for trading. Stock Market Simulation Apps: Stockpile: Allows you to buy and sell fractional shares of real stocks with a small budget. Cashback Credit Card Apps: Cash App: Allows you to send money to friends, invest in stocks or Bitcoin, and get cashback on purchases with the Cash Card. It's important to note that while some of these apps can provide additional income or savings, they are not guaranteed ways to get rich or replace a full-time job. Earnings can vary greatly, and success often depends on your dedication, location, and the amount of time you invest.