Systems | Development | Analytics | API | Testing

At the 2025 instalment of its WWDC event, Apple set out its long-term vision for how we think about platform strategy, AI integration and multi-device architecture. If you’re a CTO, staff engineer, or mobile lead, this wasn’t just a conference to watch, it was one to plan your entire roadmap around. What Apple revealed at this year’s WWDS will affect everything from your frontend stack to how your systems talk to hardware.

Before we get started on WebSocket integration, it’s worth quickly explaining how building real-time mobile apps used to work – and why issues with lag and latency led engineers to turn to WebSockets instead. Engineers building real-time Android apps struggled to make sure updates were reflected immediately when a user sent them. To solve this, they tried polling, which meant firing off a GET request to the server, say every five seconds, to a /messages endpoint.