手机助手 - 必备全能管家 is a free iPhone app developed by Guangzhou YuGuo Technology Co. Ltd. It falls under the category of Business & Productivity. This app offers a wide range of powerful features to help users manage their mobile devices effectively.

One of the standout features of this app is the contact backup function. It automatically backs up your contacts, ensuring that you never lose them. It also includes a "time machine" feature that allows you to easily recover any mistakenly deleted contacts. Additionally, you can log in with your phone number to conveniently manage your contacts.

Another useful feature is the data usage monitor. It accurately displays the amount of 2G/3G/4G data you have used in the current month. This helps you keep track of your data usage and avoid exceeding your plan limits.

The app also provides a comprehensive weather forecast, with real-time updates and alerts for most cities in China. It offers a user-friendly interface that displays the weather conditions throughout the day.

In addition, the app includes a network speed test tool, allowing you to accurately measure various network speeds. It also provides a convenient way to search for commonly used phone numbers.

Furthermore, the app offers a system information feature, which allows you to easily access hardware information about your device.

Lastly, the app provides a range of practical tools, such as a due date calculator, ovulation and safe period calculator, baby weight calculator, baby naming software, and a Chinese astrology tool.

Overall,手机助手 - 必备全能管家 is a versatile app that offers a wide array of features to enhance your mobile device management and productivity. Whether you need to backup your contacts, monitor your data usage, check the weather, or access system information, this app has you covered.