Use APKPure App
Get Security Plugin for Vault old version APK for Android
Prevent Vault from being terminated by task killer apps.
Security Plugin must be installed to prevent the Vault app from being terminated by task killer apps. Please install NQ Vault first (https://play.google.com/store/apps/details?id=com.netqin.ps) before installing Security Plugin.
NQ Vault keeps your personal photos, videos , app lock, cloud backup
Feel free to contact NQ customer service at vault@nq.com if you have any questions or concerns.