A:AnswerYes. Here are a couple of links that should be helpful: http://www.tomsguide.com/faq/id-1768697/move-apps-card-android.html and http://www.pcadvisor.co.uk/how-to/google-android/move-data-from-android-phone-sd-card-s7-3466195/
A:AnswerIf wifi is available, no, you would not need cellphone service. If you are somewhere where no wifi is available, you would need a data plan to access the internet.