If something is free you don't buy it and don't need a credit card. It seems that the apps you are getting are not free.
You do not need a credit card to go to the android market. You do need need a credit card if you want to buy paid apps. You do not need a credit card for free apps.
No, if you get them from Google Play you do not need a credit card.
Free apps come free of charge (thus don't require a credit card), but the vendor might require user registration, which could require a registration of a valid credit card as part of a fraud and abuse prevention scheme.
You need a credit card or a debit card to pay for apps.
No. You don't have to have an SD card to get apps. But it might be different for different tablets.
No, to purchase paid content you will need to have money in your Account (from giftcards) or your account attached to a credit card. To purchase free content you do not need to have a credit card or gift card (for example, free apps from the App Store) Just ensure you make an Apple ID through the App Store and not through the iTunes store or else a credit card will be required.
Getting apps for free can be done by jailbreaking, but be warned - it's illegal to do so.
yes! i don't know why, but you will need this in order to access free apps. I know its lame, but that's how it works!
you don't need an itunes card (you can use one but you don't have to), bit you do have to have an itunes account and a credit card
No, not all applications are priced. Many useful apps are free.
no because you need a laptop or a computer to download the apps
By going to the app store. Most apps are free but some you need to pay for.