See Also:
How To Send/share files & Apk files Directly on Whatsapp
=>Now the trick you need to apply is after locating the file you want to send rename the apk file from .apk to .doc, ie lets say you wanna send Mobileuncle.apk on whatsapp/whatsapp group, just rename it to mobileuncle.doc. Do this for every other file extension such as .zip,.pdf e.t.c
=>Now come back to whatsapp and click the person or group you want to share this file to and at the top right hand side of your whatsapp click on share and select the documents, inside the documents highlight the app you just rename to (.doc) and send it.
=>Now tell the receiving body to rename it back to .apk and install,so simple as that.
you have successfully transferred your apk app to someone on whatsapp without much stress. If you have any question, kindly leave a comment below.