Whatsapp is a popular messaging app with voice and video call features, but there are many other apps like Signal, Telegram and Wire that offer similar messaging features with end-to-end encryption, just like Whatsapp. If you’d like to build a whatsapp alternative on your own, you should consider a readily-available white-label chat solution like MirrorFly. So, you can reduce development time, customize the chat features and host the chat SDK on your own servers.