You are downloading the #1 Lock Screen XAP file v18.104.22.168 for Windows Phone. #1 Lock Screen is a free and useful Utilities & Tools app: You can pin tile to start screen this tile will lock screen when you tap on it. * Keyword: lock screen, screen off , quick off, lock off, #lock ... You can now download the offline XAP file to install & try it.
Download Locations for #1 Lock Screen 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline #1 Lock Screen XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.