Every year at WWDC Apple introduces lots of cool new APIs! But most of these new APIs also come with quite a gatekeeper: they can only be used on the latest version of iOS... Because of that, a lot of useful APIs fail to reach a strong adoption, and by the time their version of iOS has become mainstream they've been completely overlooked. So how about we fix that?

Vincent Pradeilles

Vincent works at Photoroom and contributes to building great consumer apps. He also enjoys sharing about Swift and iOS on his YouTube channel.

swiftwithvincent.com

What can you do with Path animations in SwiftUI? With some creativity, we can animate text, draw shapes, and more—it's a surprisingly versatile technique. In this talk, I'll showcase innovative ways to use Path animations in development and entertainment, helping you dive into this exciting world.

Sugiy

• iOS and Flutter engineer in Japan
• Working in DeNA Co., Ltd.
• Often participate in Japan-\(region).swift events in Japan.
• Spoke at conferences in Japan such as iOSDC from 2022 to 2024 and FlutterKaigi2024.
• I like cooking, fish, Japanese food, and pineapples.

ulog.sugiy.com

Sometimes Swift developers make fun of languages such as JavaScript that have vague concepts like "truthy" and "falsy", but Swift is packed with its own surprises and has plenty sharp edges of its own. In this talk I want to show some of the surprising behaviors of Swift – things that behave weirdly, traps you can easily fall into, and fixes to help you write better code. There will be lots of hands-on code samples everyone can try, and it will be a fun journey through the quirks of a language we all think we know.

Sophie Hudson

Most people know my dad, Paul, but I’ve been building apps with SwiftUI for three years now and want to share what I’ve learned. I like manga, go karting, and coding, but I spend most of my time looking after my dogs.

@pinkerstraws

What makes an app truly exceptional? How do the best designers create interfaces that feel intuitive, delightful, and, most importantly, human? In this talk, Sebastiaan de With pulls back the curtain on Apple's design principles and the craftsmanship behind Halide, an Apple Design Award-winning app. From refining tiny details to making tough design decisions, he'll share real-world insights on creating products that aren't just great—they're loved. Whether you're an aspiring designer or a seasoned developer, jump into a no-nonsense crash course in shipping beautiful, functional apps without getting lost in perfectionism.

Sebastiaan de With

Sebastiaan is an ex-Apple designer now making camera apps like Halide, Kino and Spectre at Lux

@sdw

WWDC24 introduced exciting updates to the Charts API, enabling more creative graph representations. This talk explores how to turn data into art using advanced customization, animations, and interactions. Elevate your data visualization skills and become a graph art designer with Charts API!

Akihiko Sato

Software Engineer at DeNA Inc., specializing in mobile development for live streaming applications. With extensive experience in iOS development since the Objective-C era, I am passionate about leveraging Swift’s evolution to create innovative and efficient applications.

@akkiee76

When you have more app or game ideas than time to implement them, AI can help accelerate your workflow, generating code, assets, tests, and documentation. Let's explore the tactics and tooling I used at Nintendo and beyond to prototype game proof-of-concepts and iterate quickly in Swift & SwiftUI!

Halordain

I’m Chris, also known as Halordain! I grew up in Dallas, Texas, and attended college at Stanford. I majored in electrical engineering with a specialization in image processing. I started studying Japanese to scout my opponents from Japan at the Pokémon World Championships, where my quarterfinals and semifinals opponents hailed from Yokosuka and Fujisawa, respectively.

My journey led me to Doshisha University to master Japanese under the Critical Language Scholarship. I abandoned my PhD at MIT CSAIL to pursue software development in Japan. Originally hired at Creatures Japan to process images for Pokémon cards, I ended up learning Objective-C to develop my first iPad app, Pokédex for iOS (Creatures, 2012).

After Creatures, I contracted with Bandai-Namco Studios to build the graphics engine behind Super Smash Bros. for 3DS. I parlayed my rendering knowledge in computer graphics, my image processing background, and my interest in iOS development into developing iOS Photoshop for Adobe, and eventually joined Apple to document their new graphics technologies such as Metal, ARKit, CreateML, and RealityKit.

I returned to Japan to help spearhead Nintendo of Japan’s smartphone game design, starting with Fire Emblem Heroes and Pikmin Bloom. These development experiences led me to craft my own path creating educational apps and experiences for teaching Japanese kids about AI and Swift.

halordain.com

Everyone knows that animations are an easy way to add a touch of surprise and delight to your apps, but with SwiftUI we can add fine-grained effects to individual characters – we can literally animate letters one by one to bring our UI to life in ways that were impossible before iOS 18. In this talk I'll demonstrate how to use SwiftUI's TextRenderer protocol to build a range of effects that help bring your UI to life in fun, engaging ways.

Paul Hudson

Paul is the author of Hacking with Swift, Pro Swift, Swift Design Patterns, Testing Swift, Swift Interview Challenges, and more. Suffice it to say, he quite likes Swift. And coffee. (But mostly Swift.) (And coffee.)

@twostraws @twostraws

In Swift, you can define identifiers not only in English but also in various natural languages. Recently, I released a Shogi app for all Apple platforms, including Apple Vision Pro. In this app, I wrote almost all identifiers in Japanese—except for reserved words and imported frameworks. In this talk, I'll share insights from my experience with Swift programming using Japanese identifiers.

Ryo Yamashita

I’m an Individual developer.

I’ve released a variety of apps for Apple platforms.
iOS & iPadOS: 7 apps
visionOS: 5 apps
watchOS: 5 apps
tvOS: 1 app
macOS: 3 apps

Portfolio link
flipbyblink.github.io/Portfolio

@FlipByBlink

High Dynamic Range imaging has the potential to change way we look at images in a way comparable to the move from HDTV change how we viewed television. This talk dives into the concept of dynamic range, how it is supported on Apple platforms, and quirks you'll run into that aren't covered in the documentation.

Benjamin Sandofsky

Escaped big-tech to build photography and video apps. Credits: Halide, Kino and Spectre.

sandofsky.com

I decided to shut down my personally developed app, WebCollector, which had over 400K downloads. In this talk, I'll share the steps I took to ensure a smooth closure. Rather than simply shutting down the service, I took measures to help users properly save their data, provided clear announcements, and disclosed the process to close the app gradually. I'll also reflect on the importance of planning for app closure when running a Firebase-powered personal project.

Kazuya Ueoka

iOS app developer, creating personal projects like #Type, Quiz Match, and more.
Living in Tokorozawa, Saitama, in a renovated pre-owned apartment with my wife and two cats.
Photography enthusiast, traveling across Japan as a photographer for Japan-\(region).swift.

fromkk.me

The Drake Equation, used by astrophysicists to estimate the number of alien civilizations we can communicate with, has many unexpected lessons for our work of building apps. A takeaway from this equation is the huge number of stars in the universe, which implies a high probability that some of them harbor life. This talk will dive into the details of the equation and then apply it to iOS. Just as the number of stars provide a powerful scale factor, there are technical factors of your app that can multiply your impact. We'll derive a new equation to calculate the carbon footprint of an app, look at iOS memory management to speed up every CPU instruction, and calculate how to reduce bugs all using lessons from the Drake Equation. I will also discuss my own experience building a startup and how I think about the implications of these scale factors when designing developer tools that many large apps will use.

Noah Martin

Noah is a software engineer from Los Angeles. He co-founded Emerge Tools in 2020 after spending 5 years working on Airbnb’s iOS app and backend. He’s passionate about mobile developer tools that reduce the complexity of apps and make them faster. Outside of building dev tools, he researches systems for machine learning as a PhD student. When he’s not staring at a screen, Noah can be found in the water perfecting his strokes or on the trail working through a list of mountain peaks.

@sond813 @noahsmartin @sond813

Let's learn about Apple's newest framework TabletopKit for visionOS! You will learn what is TabletopKit and how you can get started using it to build games for visionOS. We'll review the basics of the framework and what it gives you, as opposed to building a game without it. We'll then explore how we would build Monopoly using TabletopKit. No visionOS experience is necessary for getting started! By the end of the talk you'll be able to begin building your own tabletop games.

Mikaela Caron

Mikaela Caron is an independent iOS Engineer who actively shares her expertise on social media, focusing on iOS development, building apps in public, and freelancing. She’s continuing to work on her indie app Fruitful, which helps people connect with others at conferences, while also traveling as much as she can. She’s also an organizer for iOSDevHappyHour and loves giving back to the community.

mikaelacaron.com

I write a simple iOS game app which only has the "left" and "right" action. But the exciting is that the user input can be in many way. You can choose slider, button, accelerometer, keyboard, and the new feature in iOS 18: eye tracking. So you also can use it to test any IO functionality you find.

UJ Cheng

Advanced Software Engineer at Garmin. 10 years of iOS development experience since college. Love solving the LeetCode problems with Swift.

@iamhands0me

I will be presenting a fast, real time, infinite canvas user interface implementation using Metal, and will be exploring the use of Multi-channel Signed Distance Fields (MSDFs), for rendering text that looks beautiful and sharp at any zoom level or orientation.

Michael Petrie

I’m a New Zealander who has been living in Japan for the past 10 years. I primarily work with low level, real time graphics and audio. This year, I founded a company called kapsy.io, and am currently working on a real time generative music sequencer with the code named Variations.

@Kapsy

SwiftUI's syntax is great for UI, but it can also be used for 3D graphics. We'll combine SwiftUI's elegant syntax with raymarching and signed distance functions to make cool shaders.

Andrew Zheng

Hi, I’m Andrew coming from San Francisco! and I like making apps. This is my second time in Japan, excited to be here. よろしくお願いします！

@aheze0

We all know that the NS prefix on the Apple platforms comes NextStep. However, until I built an app for NextStep, I did not realize just how much was already there. In this quick talk, I encourage attendees to deepen their knowledge of Objective C and Apple Platforms by stepping back in time to 1996

Jeffrey Bergier

Cocoa Developer and Teacher. Love technology and cars. Working in the automotive software industry. Living in Tokyo.
Company: Woven by Toyota - This talk is not affiliated with my employer in any way.
GitHub: @jeffreybergier
Mastodon: @jeff

jeffburg.com

Combine Vision Pro (visionOS) with Generative AI to instantly transform text prompts into 3D objects in real-time. Discover how Swift and cutting-edge AI come together to create immersive user experiences beyond the boundaries of traditional apps.

Ryo Igarashi

Software Engineer at newmo, Inc.

Join us for a live recording of the popular podcast "Swift over Coffee," where the latest Swift news and practical techniques are discussed. Hosted by Paul Hudson and Mikaela Caron, the show dives into new Swift features, community trends, and coding tips that prove invaluable in everyday development. In addition to the standard recording session, the event features a Q&A with the audience—offering a unique chance to hear exclusive behind-the-scenes stories and up-to-the-minute development insights. This is an ideal opportunity for Swift developers to catch up on cutting-edge trends and strengthen their ties within the community.

Paul Hudson

Paul is the author of Hacking with Swift, Pro Swift, Swift Design Patterns, Testing Swift, Swift Interview Challenges, and more. Suffice it to say, he quite likes Swift. And coffee. (But mostly Swift.) (And coffee.)

@twostraws @twostraws

Mikaela Caron

Mikaela Caron is an independent iOS Engineer who actively shares her expertise on social media, focusing on iOS development, building apps in public, and freelancing. She’s continuing to work on her indie app Fruitful, which helps people connect with others at conferences, while also traveling as much as she can. She’s also an organizer for iOSDevHappyHour and loves giving back to the community.

mikaelacaron.com

Join us as we build a ChatGPT client, from scratch, using Swift OpenAPI Generator. We'll take advantage of Swift OpenAPI's pluggable HTTP transports to reuse the same generated client to make upstream calls from a Linux server, providing end-to-end streaming, backed by async sequences, without buffering upstream responses. In this session you'll learn how to: Generate a type-safe ChatGPT macOS client and use URLSession OpenAPI transport. Stream LLM responses using Server Sent Events (SSE). Bootstrap a Linux proxy server using the Vapor OpenAPI transport. Use the same generated ChatGPT client within the proxy by switching to the AsyncHTTPClient transport. Efficiently transform responses from SSE to JSON Lines, maintaining end-to-end streaming.

Si Beaumont

Si works at Apple, where he helps maintain a number of open-source Swift libraries to support server-side use cases. Before that, he’s worked in a wide range of areas including virtulalization, cloud technologies, privacy-preserving machine learning, and developer tools.

Si is based in Cambridge, UK, but loves to travel and see new places. He’s hugely passionate about coffee and enjoys playing bass guitar.

@simonjbeaumont

Leverage hand tracking in Apple Vision Pro to build a SwiftUI window that operates like the native visionOS SystemOverlay. Invoke and manipulate windows intuitively in 3D space, creating a touch-like UI. We present a new interface for spatial computing.

tochi

I am an engineer/developer specializing in iOS and visionOS. I have created numerous personal apps, including “Large Contacts” for iOS and “Good Sleeper 360” for visionOS. I’ve authored several technical books, such as Slack & Zoom & Trello Basics + Tips for Telework (in the できるfit series) and What We Wanted to Know About Alexa, and more recently, The Path to Becoming a visionOS Developer. I have received many accolades, including the Mashup Award and top honors in contests organized by Japan’s Ministry of Internal Affairs and Communications, as well as multiple awards in SPAJAM and other hackathons. I have spoken at various events like JAWS Festa and Alexa Day, and I currently share insights on visionOS through social media.

tochi.github.io

Take your iOS app to the next level by integrating 3D content with SwiftUI. Go beyond static models and learn how to add animations, dynamic content ,performance enhancements and interactive elements using RealityKit, creating immersive experiences that set your app apart.

Kosala Jayasekara

I have completed more than a decade long experience in the field of futuristic developments and managed to gain a portfolio of local and international clientele while working with prominent corporate entities in Sri Lanka.

Currently serving as the Chief Technology Officer for Fixel Digital which is a development house specifically for Mobile application developments . it’s a pleasure that I am well known for my Punctuality, Attention to detail, and innovative mindset among the clients and the industry that I am being with

I have started iOS Development in its early development stage in 2011. I have been in the apple ecosystem for more than a decade now, also Delivered more than 55+ Apps, including iOS, macOS, tvOS, and watchOS. At the same time, I am serving my knowledge to Students in the IT industry and providing consultation services to my clients from overseas.

kosalajayasekara.com

Skip is an innovative tool that transforms Swift code for Android with native performance. Evolving from transpiling Swift to Kotlin, it now runs compiled native Swift on Android. In 5 minutes, discover Skip's fundamentals, architecture, and its advantages over React Native and Flutter!

yamaken

I usually develop iOS apps at LY Corporation and actively output through blogging and speaking engagements. Last year, I spoke 13 times.

@yamakentoc

Immersive Video is a 180-degree video that appears three-dimensional. My team and I, along with several collaborators, captured an Immersive Video of FC Machida Zelvia—a professional soccer team in Japan's J1 League—and hosted a hands-on session exclusively for special members. This project was made possible through the club's support and cooperation. The event was a great success, and we encountered many challenges and learned a great deal through trial and error in the processes of filming, video editing, developing the Swift-based Viewer, and running the session. I'm especially eager to share the in-depth insights we gained from building the Viewer in Swift and the overall experience. It's rare to see professional sports filming projects and Immersive Video technology being showcased at developer conferences, and there are many fascinating insights to be shared from both the video capturing process and the Viewer application development.

Satoshi Hattori

Belongs to Cyber AI Productions. XR Expert at Cyber Agent.
Responsible for system development related to XR and studio shooting.
Purchased Apple Vision Pro locally on its U.S. release day. Actively engaged in development and research, including the visionOS 30 Days project.
Organizer of the visionOS Engineer Meetup. Published a book on visionOS app development.
Has spoken at iOSDC for nine consecutive years, as well as at try! Swift Tokyo, XR Kaigi, Let’s visionOS, AWE USA, and more.
Mainly shares updates on X, so please follow!

@shmdevelop @satoshi0212 linkedin.com/in/satoshi-hattori amazon.co.jp/dp/4297143119

SwiftSyntax is Apple's library for parsing and manipulating Swift code. It can be use for anything from formatting source code (as in swift-format) to generating it (as in Swift Macros). In this talk I'll explain how the SwiftSyntax library works - the range and limitations of its capabilities, and demonstrate some cool use cases that you might not have considered.

Nick Lockwood

Nick is a veteran developer, author and open source aficionado, and has been developing iOS apps since the dark ages of manual memory management back in 2009. He is known for various open source projects such as SwiftFormat, Euclid, Expression and iCarousel. When Nick isn’t writing parsers in (and for) Swift, he likes to tinker with 3D graphics and even sometimes fancies himself as a games developer.

@nicklockwood @nicklockwood

Ever wondered about simulations of how weather changes or viruses spread in the air? These simulations are built with simple calculations—just addition, subtraction, multiplication, and division! In this talk, we'll use Swift to create a simple simulation and show you how easy it is!

Ryota Motonishi

Ryota Motonishi is an iOS engineer at LY Corporation. He is working on the development of the LINE chat app. In his free time, he enjoys singing karaoke.

SwiftUI APIs are inherently declarative, yet many existing Apple platform APIs are designed to be used in a procedural manner. In this session, we'll explore how to design and implement SwiftUI-friendly declarative APIs that integrate with procedural frameworks. Using AVFoundation as an example, we will build a photo and video capture app while uncovering best practices for adapting procedural APIs to the declarative paradigm of SwiftUI.

Yoshimasa Niwa

As a software engineer, I divide my time between working on client applications, backend services, and occasionally indulging in watching cat videos and photos. I have led engineering teams and cats to deliver user-facing products with a special focus on usability, customer satisfaction, and meowing.

@niw

The reason why I'd like to give this talk is because as someone who works as both an iOS/Mac developer and a security researcher, I've learned that there's a lot that the developer community can contribute to security research on Apple's platforms, but most developers think that it's a niche outside their area of expertise. However, most professional security researchers focus at the low level where app developers don't usually have a lot of knowledge. Through my work, I've found quite a few security bugs in Mac and iOS that could be found at the higher level, and those bugs have rewarded me with multiple bug bounty payments from Apple as well as helping improve the security of the operating systems. This talk would be a way to introduce more developers to the practice, with some examples of my past experiences, and encourage them to pursue security research as part of their career. You can read about some of my security research work on my blog. I think this fits well as both an inspirational and technical topic that's not usually covered in developer conferences.

Gui Rambo

Gui Rambo is a Mac developer and security researcher from Brazil, known for apps such as AirBuddy and VirtualBuddy.

@insidegui

In short, this is a story about hacking Genmoji. Genmoji can now be displayed in notifications from iOS18. In this talk, we will reverse engineer Genmoji and display custom emojis in notifications. I'm a third-party app developer for Mastodon. This talk is perfect for me.

noppe

iOS & visionOS app developer in Japan. Crafting 𝙫𝙚𝙖𝙧 and DAWN for mastodon. Loving #foxes.

vear - Anime Avatar Camera
DAWN for Mastodon

@noppefoxwolf

Swift's regex engine is an ambitious project aiming to be a superset that encompasses all existing regular expressions. However, as of now, many features, such as lookbehind, remain unimplemented. Contributing to this project can be challenging due to the complexity of the existing codebase. In this talk, we will implement a small regex engine in Swift, focusing on the three fundamental operations: concatenation, alternation, and repetition. We will also explore how to implement a backtracking (VM-based) approach similar to Swift's official regex engine. By understanding this implementation, you'll take the first step toward deciphering Swift's official regex engine and contributing to its development.

kishikawa katsumi

Katsumi has been developing software for the Apple platform for over 10 years and currently works for a company that develops low-code platforms. He works on automating all kinds of tasks. In his spare time, he builds and maintains various open source projects that improve developer productivity.

kishikawakatsumi.com

Swift is a fantastic general purpose language, which can and has been successfully used beyond its mobile origins, from embedded through server-side systems. One of Swift's unique strengths is its powerful native language interoperability with C and C++. Recently, the Swift project started work on integrating improved Swift/Java interoperability with the use of both JNI and the new Foreign Function and Memory APIs introduced in JDK22. In this talk we'll deep dive into the deep integration approach taken between the language runtimes using the FMM APIs and their unique strengths but also challenges.

Konrad 'ktoso' Malawski

Konrad works in the Swift language team at Apple, where he focuses on concurrency and distributed modules of the language, and server-side focused libraries. He was part of the design and implementation of Swift’s structured concurrency and actor model, as well as the distributed actors language feature and cluster library. Currently he’s focused on Swift/Java interoperability efforts. Previously, he worked on Akka at Lightbend/Typesafe, where he maintained core pieces of the ecosystem, including the clustering, event sourcing, streaming and HTTP libraries. He also is a Java Champion and made significant contributions to the reactive-streams specification and TCK which later became the foundation of the JDK’s java.util.concurrent.Flow types.

@kto.so @ktosopl @ktoso

Java's annotation processing leverages developer productivity by compile-time code generation. Swift can now replicate that innovation with Swift Macros and Swift Syntax. Learn how to express annotation-like features in Swift, automate code, and boost productivity. Let's unlock Swift's potential!

rockname

I’m an iOS and Android app developer working on a banking and card payment service at SmartBank.

Unlock the secrets of SwiftUI performance! Dive into the render loop and discover techniques like offscreen rendering to manipulate it. Gain practical insights into how SwiftUI views are rendered and learn powerful ways to optimize them. Transform your apps with smoother and more efficient UI.

Pradnya Nikam

With over 12 years of experience developing for Apple platforms, I am passionate about creating exceptional user experiences. I have a strong background in UIKit, and these days, I primarily focus on coding SwiftUI views for iOS and tvOS apps. I currently work at Rakuten Viki, a video streaming company with over a million active users per day.

I absolutely love attending conferences and public speaking, sharing my knowledge and learning from the community. Outside of work, you can find me planning my next travel adventure or running around with my 3-year-old.

@pradnya-nikam

"Hmm, something looks off..." "Hmm, this interaction is broken..." If you've built UI with SwiftUI, you've probably encountered these issues more often than you'd like. In many cases, the solution involves wrapping UIKit to work around the problem. In this lightning talk, I'll discuss when to use SwiftUI and when to rely on UIKit, breaking it down into eight common patterns.

ojun

I develop iOS apps at DeNA Co., Ltd. My native language is Swift.

In this talk I'll show you how you can design your app data pipeline in a modular way, and integrate my open source tools to enable easy bug reproduction and faster development workflows.

Krzysztof Zablocki

Krzysztof is shaping the future of Apple platforms with tools adopted by 80K+ teams, from Apple to Disney. 🏆 2x Engineering Emmy winner, co-founder of Pixle, and creator of Foldify & Sourcery for Xcode.

@merowing_ @krzysztofzablocki merowing.info