TeamViewer is a great software . Desktop version is available for free on its website and also the app is available for free on Google Play Store and App Store respectively. Basically TeamViewer lets you simulate someones others PC on mobile for some respective work that you want to do. Lets take an example I have got some problem in my PC and I want to get it repaired so the person who would repair it is sitting at his place and requesting your ID and password and when I will tell him my ID and password he would be able to control my PC from his PC or mobile and solve the issue that is creating problems sitting at his home he can simulate my PC which becomes very handy and also easy. I recommend you all to download the software as this can be in need for you anytime in future or present. I personally use this software and having a great experience till date. I want to share my personal experience my friend wanted to play a game in my PC so I told him to download TeamViewer on his PC. Free download TeamViewer in PC then I gave him the ID and password of my TeamViewer then he entered the ID and password in his PC and was able to play games sitting on is PC but on my PC via Internet connection and the great software TeamViewer. Thank you all.