What is the App with the App?- Help you secure your childs safety by using smartphone usage time management, usage history monitoring, and blocking access to pests. .※ Promise with your child (for parents) Main functions1. Protection from harmful substances in SmartphoneProtect your child from harmful content by preventing access to harmful apps and harmful sites as well as preventing harmful video playback on smartphones.2. Manage smartphone usage timeYou can specify the time of smartphone usage according to the life pattern of your child on weekdays / weekends. Its even more efficient because you can choose which apps you want to control.3. Avoid paid app payments without consentPrevent paid apps and in-app payments with parental consent, and avoid excessive billing.4. Smartphone monitoringYou can check your childs daily smartphone usage time, as well as app history, install / delete history, visits to internet sites, and teach your kids how to use the right smartphone.You can also change your child care settings anytime and anywhere on your smartphone.※ Promise with mom (for child)1. Identify real-time usage and used apps- You can check your smartphone usage by checking the real time usage time and used app.2. Check available time zones and block exception apps- You can check the available time zone of the current smartphone and available apps.※ Precautions- You can use the service only if you use the dedicated terminal of S1 and the dedicated safe junior / youth plan for S1. You need to register as a guardian on the terminal of the person to be protected (child).- In order to register as a guardian, you need to install S1 Guard Service (Guardian) application.[Access Permission Information]• Required access permissions- Accessing device ID and call information: Appointment with S1When you need the device ID and contact information to identify each terminal and user when signing in to the app. Therefore, you need access to device ID and call information.※ Homepage and customer supportHomepage: http://www.s1net.co.krCustomer Support: Security Phone Customer Center SKT Communication Network 1599-7114 KT Communication Network 1544-3112Service Provider: S1Developer: Jirangjigyo Co., Ltd.