question

Hey peeps, I've just released my first game Crackshot http://www.amazon.com.au/Pocket-Tech-CrackShot/dp/B00NA4KKR6 at $1.20 The thing is I've tested the game on Android, as the game is also available from the Google play store. But haven't yet tested the game on any Amazon devices as I am unable to get my hands on one. I was only going to publish the game to the IOS App Store which it is still in the review stage and Google play. But after some research I found out that it is really easy to publish to the Amazon store as well. Anyway to get to my question, I was wondering if you guys thought it would be a good idea to start off the game for free for say a week and head to this forum and let people know so I'm able to get some reviews on how the game plays on various devices? Do you think that would be a good idea? If after that week I updated the game and changed it back to $1.20 would the reviews remain? As you can probably tell I'm new to all of this so any advise would really be appreciated! Cheers