MQTTCHAT is described as 'used to add voice, video, and text chat to your site. Secure one to one messaging chats to keep the interaction going. Users can upload, preview, and send photos to each other' and is an app in the Social & Communications category. There are seven alternatives to MQTTCHAT for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Android, iPhone and Chrome OS. The best alternative is CONTUS MirrorFly. It's not free, so if you're looking for a free alternative, you could try WordPress Chat. Other great apps like MQTTCHAT are Stream Chat (Paid), LekkerIM (Paid), Chatter Script (Paid) and SendBird (Paid).
CONTUS MirrorFly is customizable communication APIs and SDKs for businesses to integrate or develop collaboration platforms with real-time chat, voice, video calling and video conferencing features on their existing web and mobile applications.
With Stream’s chat react components, SDKs, and UI kits, product teams can unleash chat on web, or as a mobile app, with just a few lines of code. Maximize development bandwidth with Stream’s flexible backend messaging API and front-end components.