I’m here with a little trick on how to send android apk on whatsapp.
3. Touch and hold the app you want to send, a menu will appear.
.4 select rename, and rename the app extension from .apk to .doc, then click on OK.after renamed from .apk to .doc the file will change to document file.(example of file extension: .mp4, .Apk., .doc)
.5 touch and hold the doc file, a menu will appear then select more and select share a popup menu will appear then select whatsapp
.6 your whatsapp will open select the person you want to send the app to.
Open your file manger(recommended es file explore)
2 touch on whatsapp folder
3 touch on media,then touch on whatsapp document
4 touch on received folder
5. Touch and hold the doc file, then rename it from .doc to .apk