Remote control not rooted s3 alternative

[androidqu13214]

Teamviewer allows a pc to connect to a mobile device and remotely control. The problem is that this software is too expensive.

Is there an alternative, free or paid for software that will allow me to do the same without root access.

The phones in question are Samsung Galaxy s3's

 

[Digital Controller]

As far as I know Teamviewer should be free.

The app is: https://play.google.com/store/apps/details?id=com.teamviewer.teamviewer.market.mobile&hl=en

And I know you can download it for free on their website for PC, I use it at work all the time.