Is there any easy way to transfer and app from an iPhone onto an apple mac?

So basically, I'm trying to play "Five Nights at Freddy's" on the apple mac, but instead I already bought it for $2.99 at the app store. I refuse to make my dad buy it again on the computer after he already decided to lend me an iTunes gift card to get the game in the first place. What I plan to do is play the app on the computer and record myself playing the game (reactions, etc.) then post it to YouTube. However, I have no clue how I'm going to record the gameplay like the pro-YouTube gamers do without paying for any software. I know how I can record face cam, so that isn't the issue. So could anyone help me find a free way to transfer the game to my dad's mac and record the gameplay? All help is appreciated!

An easy way to transfer an app from iphone onto apple mac is to use third party iphone/mac transfer tool. Download this iphone transfer software to copy your Songs, Videos, Photos from iphone to computer.

http://www.001-software.com/itransfer/mac.html

In some cases they may be 2 different releases entirely, so just because it runs on a phone doesn't mean it runs on Mac. For mac you want full screen which will not be the case if you try to run a phone app there.