STEP 1 Pre-Development Research STEP 2 STEP 4 Develop Your Stock Define Your Requirements Trading Application STEP 6 Implement Security Measures STEP 8 Deploy Your Stock Trading App STEP 3 Design Your Stock Trading Mobile App STEP 5 Integrate Third-Party APIs STEP 7 Testing Below are a few common APIs you can add to your app. Alpha Vantage -For providing financial market data, such as stock quotes, technical indicators, and historical data. Interactive Brokers (IB)-For enabling order execution and portfolio management. ChartIQ and Highcharts -To offer interactive financial charts and technical analysis tools in the app. Riskalyze - To manage risks related to the volatility of the stock markets. Stripe -Forsecure payment processing and managing transactions in the stock trading mobile application. These are only recommendations for the APIs. You can choose different APIs that suit your business requirements the best