WhatsApp Business from Facebook. WhatsApp Business enables you to have a business presence on WhatsApp, communicate more efficiently with your customers, and help you grow your business. If you have separate business and personal phone numbers, you can have both WhatsApp Business and WhatsApp Messenger installed on the same phone, and register them with different numbers.
A free .apk file of WhatsApp Business 2.19.53 is available from Droid Informer and you can read users' reviews on this site. Prepare 25 MB of free space on your device for this app setup package and keep in mind that it works fine on Android 4.1 and above. The antivirus report reveals that the app is safe. WhatsApp Inc. is the developer of this application which can be found in the Communication category.