How do I download with no play store

[AC Question]

I have an LG 90 Optimus D415. There is no play store app on the phone. How do I download an app?

 

[jasonandrews25788]

ApkMirror is the most reliable website to download apks
APKMirror - Free APK Downloads - [URL=http://forums.androidcentral.com/usertag.php?do=list&action=hash&hash=APKPLZ]#APKPLZ #SOONBACKANSWER[/url]
but how did it came with no playstore ?