Which one works?

Try Tencent Mobile Manager, which has privacy protection functions such as file safe, software lock, private space, privacy monitoring, etc. It has become the best partner of smart phones and has performed quite well in privacy security.

The software that needs to be locked can be added separately or in batches. The unlocking process is very simple. Just select the software and click the unlock button. Simple operation can lock the private software, prevent the software from being used by others at will, and effectively ensure personal privacy and security.