Anti Theft Alarm:SecurityAlarm is a free iPhone app developed by Beijing Deep Touch Technology Co. Ltd. It falls under the lifestyle category and offers various features to protect your phone from theft. The app has multiple modes that trigger an alarm in different scenarios.

In Motion Mode, the app detects movement and sets off an alarm if your phone is moved. Headset Mode activates an alarm when your headset is pulled out. Airplane Mode alerts you if your phone is in airplane mode. Charging Mode alerts you if the charging process is interrupted. Pocket Mode sets off an alarm when your phone is taken out of your pocket or bag. Lastly, Location Mode triggers an alarm when your phone is far away from your location.

It's worth mentioning that the app also offers subscription options for additional features. The subscriptions include Yearly VIP, 6-Monthly VIP, 3-Monthly VIP, and Monthly VIP, each with its own pricing and renewal terms. Users can manage their subscriptions and turn off auto-renewal in their Account Settings. The app's Terms of Use and Privacy Policy can be found on the developer's website.

Overall, Anti Theft Alarm:SecurityAlarm is a useful app for those concerned about the security of their iPhone, providing various alarm modes to protect against theft.