It is a federal and state offense in most countries to install cell phone monitoring/surveillance software onto a phone which you do not own or have proper authorization to install. It may also be an offense in your jurisdiction to monitor the activities of other individuals. Check all state, federal and local laws before installing any Cell Phone Monitoring Software. You must always notify a person they are being monitored. Federal or local law governs the use of some types of software; it is responsibility of the user to follow such laws.