Chat SDK
Jul 6, 2026
Ethora 26.07: Deep Theming, Message Search, Durable Reactions
Ethora 26.07 brings full theming and font control across web, React Native and Android, end-user message search, audio calls, and durable message reactions.
Chat SDK
Jul 1, 2026
On unread message counts and chat server performance
Ethora now offers a server-side unread message counts API for chat, alongside the client-side SDK approach. See the trade-offs and when to use each.
Chat SDK
Jun 25, 2026
How WhatsApp Works: System Design, Tech Stack, and Lessons for Building Your Own Chat
WhatsApp was acquired in 2014 for $19 billion. At the time, it had 450 million users and 55 engineers. The ratio – users to engineers – was treated as a joke. Now that number is closer to 3.3 billion users, and the engineering team still wouldn’t fill a conference room at a mid-sized tech company. […]
Chat SDK
Jun 25, 2026
How to Build a Video Chat App: Architecture, WebRTC, and the Build-vs-Buy Decision
Build a video chat app in 2026: WebRTC architecture, signaling, STUN/TURN, SFU, code samples, SDK options, costs, and the build-vs-buy decision.
Development
Jun 22, 2026
Video Communication Explained: Types, Features, Protocols, and Where It Is Headed
What video communication is, the four types, must-have features, the protocols behind it (WebRTC, SIP, RTP), and the trends shaping it in 2026.
AI SDK
Jun 19, 2026
The cost of building in-app Chat and AI Agents: engineering time, hidden subsystems, and the self-hosting middle path
What building real-time chat and AI agents in-house actually costs in engineer-months: the hidden subsystems, the maintenance that never ends, and why self-hosting a chat SDK lets you own your data without building the plumbing.
