It is also an innovative enterprise in cmnet.
But I haven't used it, and I don't know if it's safe.
Usually use App Bao to back up the phone address book and photo information.
I didn't find anything that revealed my privacy. You can download it. I've been using that.
And you can also consult news materials and so on, whether it is as simple as an app store.
High safety factor, no privacy risk.