有知有行 is a free iPhone app developed by Beijing Youzhiyouxing Technology Company Ltd. It falls under the category of Business & Productivity, specifically in the Finance subcategory. The app aims to help users gain a better understanding of investments and achieve long-term reasonable investment returns.

The app offers a comprehensive range of investment content, including an investment beginner radio drama that tackles the 9 major challenges faced during the initial stages of investing. It also provides an introductory course to quickly grasp the most important aspects of investing. The investment knowledge system organizes the main threads of "from beginner to practical operation" in investments. Users can also access a collection of valuable investment resources from the popular investment blogger "ETF Saves the World".

In addition to educational content, 有知有行 also offers useful investment tools. The "Knowledge and Action Thermometer" assists users in gauging market trends, while the "Knowledge and Action Blackboard" provides discussions on market strategies. The "Expense Tracker" allows users to consolidate their scattered funds in one place.

Furthermore, the app features investment-themed podcast programs. "Unknown to Anyone" is a talk show hosted by the founder of 有知有行, Meng Yan. "Knowledge and Action Pub" shares investment stories from various investment experts and enthusiasts.

Please note that the app does not claim to transform users into investment masters or provide foolproof wealth secrets. However, it strives to sincerely and diligently assist users in enhancing their understanding of investments and attaining reasonable long-term investment returns.

For more information, you can visit the official Weibo account @有知有行 or the official WeChat account 知行陪伴. The founder can be found on Weibo @孟岩 and on WeChat under the same name.