Develop a React Native App, for cross-platform use

I hope that bidders can log in to Baidu, amap or download Baidu map, amap app,WeChat,QQ,.. which helps you understand my project. Develop a React Native app, which is a Geo-location-based social application. The whole project requires front-end and back-end development, includes design, development, testing, formal launch, data feedback and so on. Bidders need to provide a variety of documents, information, source code and other materials. All copyrights, materials, etc. of the project belong to the project investor. At present, we have preliminary ideas and a draft design. We need professional individuals or teams to develop and refine. If cooperate happily, we will consider long-term cooperation. Thanks! To illustrate the situation, we are in China. You need to be familiar with Google's open platform(map /api), and you should be familiar with China's open platforms such as Alibaba, Baidu, and Tencent...All jobs require you to complete.I hope that bidders can log in to Baidu, amap or download Baidu map, amap app,WeChat,QQ,.. which helps you understand my project. Recently, some details are being improved. MILESTONES: 1,Before the end of June 2019, the completion of the project design, development and testing,fully meet project requirements; 2, Before the end of September 2019, complete the application officially launched,the app works fine and runs [login to view URL] to submit the project's various documents, instructions, source code, etc. to the investor; 3, Maintain the good operation of the app until the end of 2019, do a good job of data feedback, bug fixes, etc.