Whether you accidentally deleted files, your phone damaged, ROM flashing or restore factory setting. The Android Data recovery program can restore your important data with only 3 steps, including messages, contacts, photos, call logs.etc.
User Guide: How to Recover Contacts from Android Phone
Too much important data are stored on your phone? Or Need to prepare extra room for more files? It is highly recommend using Android Manager Tool to help you backup everything, contacts, applications, SMS, call logs, music, Movies, pictures, and calendar.
User Guide: How to Transfer Contacts from Android to PC
When you switch your phones, what the mostly troubled you was how to move a larger number of phone number, contacts, messages and other data to new phone. Now, the developers have completely broken this technical difficulties and offer the powerful phone transfer program, which can copy everything between different phones.
User Guide: Transfer Contacts from iPhone to Android