XSender Laravel Web Application sends bulk Email through SMTP, PHP Mailer, Send Grid API and also sends mass SMS via android device using SIM and 4 SMS API Gateway.

WP SMS Pro Pack - WordPress and WooCommerce SMS Notification and OTP plugin, Integration with BuddyPress, GravityForms with Twilio, Plivo, Clickatell, Infobip, and Vonage Nexmo.

Connect is a Web Application offering Real-Time Communication with Video & Audio Communication, File Sharing, Screen Sharing, Whiteboard and Live P2P & Group Chat Messaging.

Clover is an instant messaging & conferencing web app with audio / video capabilities, both in one-to-one calls and in group calls with multiple remote peers!

Sendroid Ultimate is a bulk SMS portal software and SMS reseller tool designed for bulk SMS service providers, SMS resellers and bulk SMS marketers.

YoBro is an end-to-end WordPress messaging system built using React-Redux. This allows the user to send or receive private messages, send or receive notifications for unread messages. User can upload image, media files in the message.

Nimble Messaging Mobile Bulk SMS Marketing Application for Businesses intergrated with Twilio sms, plivo sms, nexmo sms and signal wire sms gateway.