Android does not have one built into them. However you can download the app from whatever app store comes with your smartphone.Ie - Samsung App Store for Samsung Galaxy phones and so on.
The Play Store (Formerly Android Market).
No, But It Has A App Store Called Samsung Apps :-) I Reccomend You Buy It
The Samsung galaxy ace runs the Android operating system so it therefore has access to the Android market. Also, as it is a Samsung made smartphone it also has access to Samsungs own app store ("samsung apps").
No apple's app store is better. Also the app store is better than the kindle's app store. If you were deciding between the Iphone, Ipod touch or Ipad and the kindle get the APPLE PRODUCTS. MUCH BETTER!
Use Menu->My Accounts for this
check in the app store!
Yes you can and you can as well search for your grandma she has a cool app
You can download Vine through the Google Play Store or Amazon App Store.
Demo games. You have to download full versions from the app store.
Yes, Viber can be installed on the Samsung Wave 2, you just have to find it in the app store.
Go to the app store, click on the search bar, and search for Viber. It will then let the user know whether the app in question is compatible with the Samsung Chat 335.