What is the best app for opinion trading? Recently, opinion trading has become a youth favorite topic, and Probo is considered the best platform for opinion trading. This app allows you to use your knowledge, skills, and subject-specific expertise to share your opinions and answer simple questions. https://www.quora.com/What-is-the-best-app-for-opinion-trading/answer/Rupali-Gupta-582?prompt_topic_bio=1