xCoins is a free iPhone application developed by Yiwu Madan Network Technology Co. Ltd. It falls under the category of Business & Productivity, specifically in the Finance subcategory. This app allows users to easily watch the prices and trends of various cryptocurrencies, including popular ones like Bitcoin and Ethereum.

With xCoins, users can conveniently track the values of their own cryptocurrency holdings. Whether you're a seasoned investor or just getting started in the world of cryptocurrencies, xCoins provides a user-friendly interface that makes it easy to stay up-to-date with the latest market prices.

Please note that the developer can be contacted via Twitter at @ligulfzhou or through email at However, it's important to remember that this review should focus solely on the objective facts and features of the app, without any personal judgments or contact information.