UltData for Android is a powerful and efficient data recovery tool specifically designed for Android devices, developed by Tenorshare from Hong Kong in China. It is a lifesaver for those who have accidentally deleted important files or lost data due to various reasons such as formatting, software crashes, or hardware failures. It provides a simple solution to recover lost or deleted data including photos, videos, messages, contacts, call logs, WhatsApp data, and more.

dr.fone (full name: Wondershare Dr.Fone ToolKit for iOS and Android) is a versatile and all-purpose toolbox for iOS and Android devices running on Windows and Mac platforms, developed by Wondershare from China. It initially only focused on data recovery on mobile phones, but later gradually improved and integrated all the important mobile OS maintenance tools into one place. Now, it has become a popular complete solution for mobile users.