Install the WAPSender chrome extension and send bulk messages to your friends and clients without any charges. WAPSender offers impressive features: 1.) Send bulk messages to your saved or unsaved contacts in your phonebook. 2.) Import all the contacts from CSV and TXT files with a single click. 3.) Send customized messages in the form of redirected links and multimedia files (photos, videos, and audios) to enhance engagement. 4.) This tool is a Google Chrome extension and can be installed with a single click. 5.) Download the delivery reports of all the sent messages. 6.) Optimized blocking features 7.) WhatsApp group phone numbers download