If you buy an app at the time it is free, and the price changes, then you still don't have to buy the app for the change in price.
The download button is either 'Free' (for free apps), or the price, and is in the same location as how you would buy a song.
yes you can in the app store
Theft.
No, you do not have to pay a monthly free for texting. If you have a free texting app, you only pay the price of that app once, and only once, with no monthly fees.
All apps in installous are free, those price are just to tell you that if you buy it on app store, it costs that much.
You don't buy it, it's a free app.
Yes it is free after you have paid
After you have redeemed your code from an iTunes gift card, then the amount specified on the card will be ready to spend in iTunes. To buy apps, you go to the app store icon, and find an app and select it. On the app page you should see a button on the top right of the page next to the name of the app that shows the price (on any unpaid app it says free). Tap on the price and it then asks if you want to download it. Tap it again to purchase the app, input your Apple ID password and the app will begin downloading.
No, the messaging app comes free with iOS 5.0
its free you buy it at the app store.
Yes, but it doesn't just give the app to you. First, you have to through and buy the app yourself, and then they will refund you the app's cost.
Yes, if you buy it again with the same itunes account used to previously purchase the app, you can get it back for free.