SINMAO is a free iPhone application developed by Shenzhen Yi Wen Technology Co. Ltd. It falls under the category of Utilities & Tools and offers a range of features that focus on providing real-time personnel location tracking and safety measures.

With SINMAO, users can easily track the location and movement of individuals in real-time. The app utilizes compass navigation technology to indicate the direction between individuals and devices, enhancing the overall user experience. Additionally, SINMAO includes a built-in feature for viewing historical movement trajectories, allowing users to review past locations and movements.

The app also offers functionality for viewing alarm messages and creating geofences. These features contribute to a comprehensive safety assurance for your loved ones, ensuring their well-being at all times.

SINMAO is a reliable tool for monitoring and securing the whereabouts of individuals, making it a valuable asset for personal safety and peace of mind.