安全守护2 is a free iPhone application developed by shenzhen sanjitongchuang electronic co.LTD. It falls under the Lifestyle category and offers several features to help you keep your loved ones safe.

One of its main features is the ability to record and send audio messages between the app and the device. The app can also locate the device on a map and provide real-time updates on its location. Additionally, it can track the device's movement history and provide statistics on it.

The app also offers a safety zone feature that allows you to set a virtual fence around a specific area. If the device leaves the designated area, the app will notify you. Other features include low battery alerts, an alarm clock setting, and an SOS/emergency contact feature.

Please note that the app offers a subscription service for its gold membership, which includes additional features. The subscription automatically renews at the end of each period, and users can cancel at any time. For more information on the app's privacy policy and subscription terms, please refer to the links provided.