您好：QQ同步助手是腾讯公司开发的一个安全、免费的个人手机数据的备份管理服务软件。

Hello: QQ synchronization assistant is a safe, free personal mobile phone data backup management services to the Tencent Inc to develop the software.

youdao

强大的文件备份软件，具有标准性和超越性。主要特点：同步备份、恢复数据。

Powerful file backup software and standards and transcendent. Main features : synchronous backup and recover data.

youdao

您也可以备份数据，在一台计算机和它还原到另一台计算机，因此软件不仅是一个备份工具，但也是一个同步的工具。

You also can backup the data on one computer and restore it to another computer, so the software is not just a backup utility, but also a synchronization tool.

youdao