Android where to save personal data?

Android where to save personal data?

References

Reference NO 1

http://stackoverflow.com/questions/15200887/android-where-to-save-personal-data

Reference NO 2

http://www.milkaddict.com/how-to-migrate-personal-data-to-a-new-android-phone/

Reference NO 3

https://play.google.com/store/apps/details?id=com.personal.android&hl=en

Reference NO 4

http://www.droid-life.com/2013/01/09/backing-up-your-android-apps-and-other-phone-info-beginners-guide/

Reference NO 5

http://androidandme.com/2011/06/news/popular-android-apps-put-your-personal-data-at-risk/

Reference NO 6

http://www.tested.com/tech/android/423-complete-guide-to-backing-up-your-android-phone/

Reference NO 7

http://android.stackexchange.com/questions/5673/how-to-factory-reset-without-data-loss-and-undue-pain

Reference NO 8

http://www.webopedia.com/quick_ref/android-apps-to-secure-your-device-data.html