HeyWire Alternatives

Brings voice and messaging to your web and mobile applications.

Plivo simplifies your business communications.

Chat API & In-App Messaging SDK for Mobile & Web Apps Innovate fast, save development cost and delight users with a scalable, secure and customizable Chat

Nexmo is a simple two way SMS API with global reach and wholesale rates

World's Most Scalable Chat APIs & SDKs for Small, Medium & Enterprises

paid Free Trial

CALLR is an extremely helpful app for those who have to deal with call control protocols for their business. You can create a customized call control system that will perform a wide range of functions.

SendBird is messaging-as-a-service.

Kakao Talk is a multi-platform texting app that allows iPhone, Android, and BlackBerry users to send and receive messages

A messaging app for teams who see through the Earth!

Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.

Voximplant is a software program that allows businesses to automate communications by setting up automatic communication systems in the cloud.

Build a custom video experience using our robust APIs, or add plug-and-play video to your website in minutes using Video Chat Embeds. Start Building for FreeTalk to SalesTalk to Sales .

WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

free