Inside SwiftDidLoad: Eternal's first iOS hackathon

Every June, the iOS community has one event circled on its calendar: Apple’s Worldwide Developers Conference.

Apple unveils new APIs, frameworks, and capabilities that shape what developers spend the next few months building with. This year was no different. Advances in Siri AI, improvements to Apple Intelligence, and new APIs introduced with iOS 27 sparked hundreds of ideas almost instantly.

Watching the excitement unfold, one question kept coming back to us: What if we could bring all of these ideas into one room and see what people would build?

That's how SwiftDidLoad was born.

Our first-ever iOS Hackathon gave developers a weekend to experiment with Apple's newest technologies, collaborate with fellow builders, and solve problems that could improve products used by people every day.

The Response Was Bigger Than We Imagined

Within days of opening registrations, applications started pouring in from students, independent developers, startup engineers, and iOS enthusiasts across India.

Eventually, over 200 developers, forming 60+ teams, made it to Delhi for the weekend.

Day One: Building Begins

As the room settled in for the briefing, the moment everyone had been waiting for finally unfolded: the challenge reveal.

Every team had to design and build a solution for one of Eternal's consumer apps - Zomato, Blinkit, District, Hyperpure, or Bistro. The goal wasn't to create the flashiest demo. It was to solve a real consumer problem with an experience that felt intuitive, and removed a genuine point of friction. 

And then, the room came alive.

MacBooks opened. Whiteboards filled up. Sticky notes found their way onto every table. Conversations quickly shifted from introductions to architecture discussions, API debates, and sketches of ideas that had barely existed a few minutes earlier.

People who had met only an hour before were already collaborating like long-time teammates. That was our favourite part. No one came looking to build just another hackathon project. They came looking for problems worth solving.

As the hours passed, teams reimagined everyday experiences across Eternal's products, using Apple's latest frameworks and iOS capabilities to solve real-world challenges. By the end of day one, every corner of the room was filled with prototypes taking shape, ideas evolving through constant iteration, and builders determined to create something meaningful.

Day Two: The Final Lap

After a night fueled by food, coffee, debugging sessions, and “just one more commit,” the teams entered the final stretch, presenting their ideas to Eternal’s iOS teams.

Every presentation reflected a different perspective. Some teams pushed the newest iOS APIs to their limits. Others focused on crafting beautifully simple experiences around practical, everyday problems.

After an impressive round of demos, ten finalists stepped up to present their ideas, and three ultimately took the win.

The Winning Ideas

🥇 Indoor Navigation, Zero Connectivity: Large concerts and stadiums often become black holes for mobile networks. This team built an offline-first, GPS-free indoor navigation system that helps users find their way inside crowded venues, even when connectivity disappears entirely.

🥈 AI-Powered Social Content for District: Sorting through hundreds of event photos is tedious. This project used LLMs to intelligently curate uploads and automatically generate engaging reels and stories, making content creation faster and far more effortless.

🥉 Peer-to-Peer Offline Messaging: When thousands of people gather in one place, mobile networks often fail. This team built a mesh-based messaging experience that enables attendees to communicate directly between nearby devices, without relying on internet connectivity.

More Than a Competition

Yes, there were prizes. And yes, everyone wanted to win.

But that's not what defined SwiftDidLoad.

It was the conversations over coffee that turned into ideas. The debugging sessions where complete strangers jumped in to help. The collective cheer every time someone finally got a feature working after hours of trial and error.

It was mentors asking the tough questions, pushing teams to think deeper rather than handing them the answers. And somewhere between the commits, the demos, and the late-night problem solving, teammates became friends.

Because the best part of a hackathon isn't just what you build.

It's the people you build it with.

Looking Ahead

SwiftDidLoad was never meant to be just another hackathon.

It started with a question?

Could we bring together a community of builders, hand them real product problems, encourage them to push Apple's newest technologies, and watch meaningful ideas emerge?

The answer was a resounding yes.

Over one weekend, we saw curiosity become collaboration, collaboration become prototypes, and prototypes become solutions that could genuinely shape the future of products used by millions. For us, that's the biggest win.

This may have been the first edition of SwiftDidLoad. It certainly won't be the last.

See you at the next one. 🚀