When you save an app to your SD card you are really only saving the data incurred while using the app...like settings, etc....not the app itself....so when you move the SD card to another device you still have to download the app to that device.
The good news is that everytime you purchase an app from the amazon store that transaction is stored so you can download that same app on all your other devices for free. I have 14 amazon devices all registered to the same email account so everytime i buy a book or video or app on one device it is immediately available on all the others as well.
I see, so will my kik conversations be transferred? Im sharing this kindle along with the amazon account, and would like to keep some stuff private.
Thank you for answering my question, you've been a huge help!