This one won't be for everybody, but it will be perfect for many. AntiTheft Alarm is a great little application to have on your BlackBerry 10 smartphone if you tend to leave your device unattended. I'm never without my BlackBerry but this one may be right up your street if you work in an office and leave your handset at your desk while popping away to grab a drink. 

The concept of the app is real simple - just enable it and leave your BlackBerry. If anyone touches it in the slightest a loud alarm will sound hopefully putting the potential thief or joker to think twice about messing with your BlackBerry. 

Once you use the app for the first time you'll need to set a passcode which will be needed in future to enable the app. You can then jump into the settings where you can change the alarm tone. I like the default one as seen in the above video but there is a nice selection including some cool police sirens. In addition there is also a sensitivity setting that can be tweaked and you can enable vibration too. 

As an extra bonus the app even has a nice Active Frame which shows that the app is live but also has a battery indictor on it which is a nice touch. 

For £0.75/$0.99 AntiTheft Alarm is a steal (no pun intended) if you feel it will come in handy. 

More information/Download AntiTheft Alarm for BlackBerry 10