As for me, in order to check if my bf cheated on me, i installed the monitoring software to his phone. It is called Mspy. Have a look http://www.mspy.com/?c=ka With the help of it you will be able to access valuable and important information, such as SMS, Call Logs, Emails and even the GPS location of the phone. Moreover, thanks to Mspy I managed to record very interesting conversation between my bf and his ex gf.. I advise you to try it and at last to get rid of any suspicions but face the truth. Good luck!