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Authors:
@hborla.bsky.social, @heckj.bsky.social, Artem Mirzabekian, Steven Troughton-Smith, @stevenaquino.bsky.social, Natascha Fadeeva, @twostraws.bsky.social, @fatbobman.com, Sam Gold.

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iOS Newsletter Issue 85 Hi folks,

📢 𝗜𝘀𝘀𝘂𝗲 𝟴𝟱 𝗶𝘀 𝗼𝘂𝘁!

On the agenda:
🚀 𝑆𝑤𝑖𝑓𝑡 6.3 𝑅𝑒𝑙𝑒𝑎𝑠𝑒𝑑
⚡ 𝑋𝑐𝑜𝑑𝑒 26 𝐶𝑜𝑚𝑝𝑖𝑙𝑎𝑡𝑖𝑜𝑛 𝐶𝑎𝑐ℎ𝑒
🤖 𝐴 𝑀𝑜𝑛𝑡ℎ 𝑊𝑖𝑡ℎ 𝐶𝑜𝑑𝑒𝑥
🖥️ 𝑚𝑎𝑐𝑂𝑆 𝑀𝑒𝑛𝑢 𝐼𝑐𝑜𝑛𝑠
🔐 𝑃𝑎𝑠𝑠𝑘𝑒𝑦𝑠 𝑖𝑛 𝑖𝑂𝑆
🔗 𝑆𝑤𝑖𝑓𝑡𝐷𝑎𝑡𝑎 𝑅𝑒𝑙𝑎𝑡𝑖𝑜𝑛𝑠ℎ𝑖𝑝𝑠
🧱 𝑀𝑜𝑑𝑒𝑟𝑛 𝐶𝑜𝑟𝑒 𝐷𝑎𝑡𝑎
💻 𝐿𝑖𝑑𝐴𝑛𝑔𝑙𝑒𝑆𝑒𝑛𝑠𝑜𝑟

#Swift #iOS #iOSDev

ios-newsletter.snappmobile.io/issues/2026-...

GitHub - pointfreeco/swift-snapshot-testing: 📸 Delightful Swift snapshot testing. 📸 Delightful Swift snapshot testing. Contribute to pointfreeco/swift-snapshot-testing development by creating an account on GitHub.

📸 𝑆𝑛𝑎𝑝𝑠ℎ𝑜𝑡𝑇𝑒𝑠𝑡𝑖𝑛𝑔 by Point-Free (@pointfree.co)

Snapshot test any value on any Swift platform - not just UIViews. Supports images, text, JSON, plist, and custom formats. Integrates seamlessly with 𝑆𝑤𝑖𝑓𝑡𝑇𝑒𝑠𝑡𝑖𝑛𝑔.

#Swift #Testing

github.com/pointfreeco/...

The SwiftUI Mindset: 5 Key Ideas to Avoid Common Pitfalls SwiftUI makes building user interfaces feel effortless, until it doesn’t. Even experienced developers can make mistakes that lead to unexpected behavior and bugs, poor performance, or degraded user…

⚡ 𝑇ℎ𝑒 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝑀𝑖𝑛𝑑𝑠𝑒𝑡: 5 𝐾𝑒𝑦 𝐼𝑑𝑒𝑎𝑠 by Natalia Panferova (@natpanferova.bsky.social)

Five principles with practical examples of common patterns and anti-patterns. Work with the framework, not against it, for predictable and performant UIs.

#SwiftUI #iOS

www.youtube.com/watch?v=Y_Ov...

A Practical Guide to SwiftUI Gestures, From Tap to Composed Interactions | HackerNoon Learn SwiftUI gestures from tap to drag, pinch, rotation, and composition to build fluid, responsive iOS interactions with real examples.

👆 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝐺𝑒𝑠𝑡𝑢𝑟𝑒𝑠: 𝐹𝑟𝑜𝑚 𝑇𝑎𝑝 𝑡𝑜 𝐶𝑜𝑚𝑝𝑜𝑠𝑒𝑑 𝐼𝑛𝑡𝑒𝑟𝑎𝑐𝑡𝑖𝑜𝑛𝑠 by Pavel Andreev

From basic taps and long presses to complex compositions - learn to chain, sequence, and combine gesture recognizers for richer interactions.

#SwiftUI #iOS

hackernoon.com/a-practical-...

Mastering the FOSMVVM SwiftUI View Generator: A Deep Dive into OpenClaw’s Architecture | Insight Ginie Learn how the FOSMVVM SwiftUI View Generator automates UI scaffolding, enforces strict ViewModel alignment, and simplifies complex state management in SwiftUI.

🏗️ 𝐹𝑂𝑆𝑀𝑉𝑉𝑀: 𝑂𝑝𝑒𝑛𝐶𝑙𝑎𝑤'𝑠 𝐴𝑟𝑐ℎ𝑖𝑡𝑒𝑐𝑡𝑢𝑟𝑒 by Aloysius Chan

Views as thin declarative layers bound to ViewModels via the 𝑉𝑖𝑒𝑤𝑀𝑜𝑑𝑒𝑙𝑉𝑖𝑒𝑤 protocol. The generator automates scaffolding for display, interactive views, form validation, and previews.

#SwiftUI #Architecture

insightginie.com/mastering-th...

Check your app’s performance without Xcode I’ll admit - I only found out about this recently! Here is a very handy way to check your app’s performance without Xcode. You can now measure battery drain directly on your iPhone and record a trace...

📱 𝑃𝑒𝑟𝑓𝑜𝑟𝑚𝑎𝑛𝑐𝑒 𝑇𝑟𝑎𝑐𝑒 𝑊𝑖𝑡ℎ𝑜𝑢𝑡 𝑋𝑐𝑜𝑑𝑒 by Vladimir Berestnev

Measure battery drain and record performance traces directly on your iPhone — no Mac needed. A hidden iOS developer feature that's a serious time-saver for real-world testing.

#iOS #Performance

www.linkedin.com/posts/ios-ma...

Tracking token usage in Foundation Models Measuring instructions, prompts, and transcripts against the context window

🧮 𝑇𝑟𝑎𝑐𝑘𝑖𝑛𝑔 𝑇𝑜𝑘𝑒𝑛 𝑈𝑠𝑎𝑔𝑒 𝑖𝑛 𝐹𝑜𝑢𝑛𝑑𝑎𝑡𝑖𝑜𝑛 𝑀𝑜𝑑𝑒𝑙𝑠 by Artem Novichkov

iOS 26.4 finally lets you measure instructions, prompts, and transcripts against the 4,096-token context window - proactive management instead of just reacting to limit errors.

#FoundationModels

artemnovichkov.com/blog/trackin...

How to rename properties without losing data - a free SwiftData by Example tutorial Learn Swift coding for iOS with these free tutorials

🗄️ 𝐻𝑜𝑤 𝑡𝑜 𝑅𝑒𝑛𝑎𝑚𝑒 𝑃𝑟𝑜𝑝𝑒𝑟𝑡𝑖𝑒𝑠 𝑊𝑖𝑡ℎ𝑜𝑢𝑡 𝐿𝑜𝑠𝑖𝑛𝑔 𝐷𝑎𝑡𝑎 by Paul Hudson (@twostraws.bsky.social)

SwiftData silently drops data when you rename properties. The fix? Annotate with @𝐴𝑡𝑡𝑟𝑖𝑏𝑢𝑡𝑒(𝑜𝑟𝑖𝑔𝑖𝑛𝑎𝑙𝑁𝑎𝑚𝑒:) to preserve data through lightweight migrations.

#SwiftData

www.hackingwithswift.com/quick-start/...

Agentic Development: Multi-Project Challenges Explore agentic development to streamline multiple projects and enhance your productivity with effective workflow practices.

🤖 𝐴𝑔𝑒𝑛𝑡𝑖𝑐 𝐷𝑒𝑣𝑒𝑙𝑜𝑝𝑚𝑒𝑛𝑡: 𝑀𝑢𝑙𝑡𝑖-𝑃𝑟𝑜𝑗𝑒𝑐𝑡 𝐶ℎ𝑎𝑙𝑙𝑒𝑛𝑔𝑒𝑠 by Antoine van der Lee (@avanderlee.com)

Running multiple AI-assisted projects? Key takeaways: avoid context switching, protect your priorities, and compound learnings into 𝐴𝐺𝐸𝑁𝑇𝑆.𝑚𝑑 files using a structured workflow.

#AI #Swift

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Authors:
@avanderlee.com, @twostraws.bsky.social, Artem Novichkov, Vladimir Berestnev, Aloysius Chan, Pavel Andreev, @natpanferova.bsky.social, Point-Free.

Never miss an issue → subscribe: ios-newsletter.snappmobile.io/subscribe

iOS Newsletter Issue 84 Hi folks,

📢 𝗜𝘀𝘀𝘂𝗲 𝟴𝟰 𝗶𝘀 𝗼𝘂𝘁!

This week's lineup:
🤖 𝐴𝑔𝑒𝑛𝑡𝑖𝑐 𝐷𝑒𝑣 𝐶ℎ𝑎𝑙𝑙𝑒𝑛𝑔𝑒𝑠
🗄️ 𝑆𝑤𝑖𝑓𝑡𝐷𝑎𝑡𝑎 𝑅𝑒𝑛𝑎𝑚𝑒𝑠
🧮 𝑇𝑜𝑘𝑒𝑛 𝑇𝑟𝑎𝑐𝑘𝑖𝑛𝑔
📱 𝑃𝑒𝑟𝑓 𝑇𝑟𝑎𝑐𝑒 𝑊𝑖𝑡ℎ𝑜𝑢𝑡 𝑋𝑐𝑜𝑑𝑒
🏗️ 𝑂𝑝𝑒𝑛𝐶𝑙𝑎𝑤 𝐴𝑟𝑐ℎ𝑖𝑡𝑒𝑐𝑡𝑢𝑟𝑒
👆 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝐺𝑒𝑠𝑡𝑢𝑟𝑒𝑠
⚡ 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝑃𝑖𝑡𝑓𝑎𝑙𝑙𝑠
📸 𝑆𝑛𝑎𝑝𝑠ℎ𝑜𝑡𝑇𝑒𝑠𝑡𝑖𝑛𝑔

#Swift #iOS #SwiftUI

ios-newsletter.snappmobile.io/issues/2026-...

🧪 𝑇𝑒𝑠𝑡𝑖𝑛𝑔 𝑤𝑖𝑡ℎ 𝐸𝑣𝑒𝑛𝑡 𝑆𝑡𝑟𝑒𝑎𝑚𝑠 by Matt Massicotte (@massicotte.org)

Testing callback-based code in Swift Testing without 𝑋𝐶𝑇𝑒𝑠𝑡𝐸𝑥𝑝𝑒𝑐𝑡𝑎𝑡𝑖𝑜𝑛? 𝐴𝑠𝑦𝑛𝑐𝑆𝑡𝑟𝑒𝑎𝑚 provides an elegant pattern for verifying event order.

#Swift #Testing

massicotte.org/blog/testing...

🎬 𝐴𝑔𝑒𝑛𝑡 𝑆𝑘𝑖𝑙𝑙𝑠 𝑖𝑛 𝑋𝑐𝑜𝑑𝑒 by Paul Hudson (@twostraws.bsky.social)

Agent skills can dramatically improve your Swift and SwiftUI workflow. Learn how to install, use, and choose the right ones for your projects.

#SwiftUI #AI #Xcode

www.youtube.com/watch?v=nKVZ...

Using an MCP to perform product optimizations Explore how MCP can transform product optimization and streamline your focus on the right tasks for maximum impact.

🤖 𝑈𝑠𝑖𝑛𝑔 𝑎𝑛 𝑀𝐶𝑃 𝑡𝑜 𝑝𝑒𝑟𝑓𝑜𝑟𝑚 𝑝𝑟𝑜𝑑𝑢𝑐𝑡 𝑜𝑝𝑡𝑖𝑚𝑖𝑧𝑎𝑡𝑖𝑜𝑛𝑠 by Antoine van der Lee (@avanderlee.com)

Want to leverage AI for app optimization? Discover how Model Context Protocol can transform your approach to product improvements.

#Swift #AI #MCP

www.avanderlee.com/ai-developme...

Migrating an iOS app from Paid up Front to Freemium – Donny Wals Paid up front apps can be a tough sell on the App Store. You might be getting plenty of views on your product page, but if those views aren’t converting to downloads, something has to change.

💰 𝑀𝑖𝑔𝑟𝑎𝑡𝑖𝑛𝑔 𝑎𝑛 𝑖𝑂𝑆 𝑎𝑝𝑝 𝑓𝑟𝑜𝑚 𝑃𝑎𝑖𝑑 𝑡𝑜 𝐹𝑟𝑒𝑒𝑚𝑖𝑢𝑚 by Donny Wals (@donnywals.bsky.social)

Changing your app from paid to freemium while keeping existing users happy? Explore the grandfathering strategy using 𝐴𝑝𝑝𝑇𝑟𝑎𝑛𝑠𝑎𝑐𝑡𝑖𝑜𝑛 and version checks.

#iOS #StoreKit

www.donnywals.com/migrating-an...

Tracking Screen Views in SwiftUI with a Custom ViewModifier - Wesley de Groot In this post we'll create a small extension to track which screens are being viewed in a SwiftUI application. Why Track Screen Views? Tracking screen views is essential for understanding user…

📊 𝑇𝑟𝑎𝑐𝑘𝑖𝑛𝑔 𝑆𝑐𝑟𝑒𝑒𝑛 𝑉𝑖𝑒𝑤𝑠 𝑖𝑛 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 by Wesley de Groot (@0xwdg.bsky.social)

Need to track user navigation patterns? A reusable 𝑉𝑖𝑒𝑤𝑀𝑜𝑑𝑖𝑓𝑖𝑒𝑟 approach with 𝑇𝑒𝑙𝑒𝑚𝑒𝑡𝑟𝑦𝐷𝑒𝑐𝑘 integration makes analytics effortless.

#SwiftUI #Analytics

wesleydegroot.nl/blog/trackin...

NSCache in Swift: A Practical Guide → Livsy Code Greetings, traveler! Caching rarely looks like a hard problem—until an app starts rendering heavy feeds, repeatedly mapping rich text, or decoding the same assets on every scroll. At that point, the…

🗄️ 𝑁𝑆𝐶𝑎𝑐ℎ𝑒 𝑖𝑛 𝑆𝑤𝑖𝑓𝑡: 𝐴 𝑃𝑟𝑎𝑐𝑡𝑖𝑐𝑎𝑙 𝐺𝑢𝑖𝑑𝑒 by Artem Mirzabekian

Need efficient in-memory caching that automatically handles memory pressure? 𝑁𝑆𝐶𝑎𝑐ℎ𝑒 offers a robust solution - but only if you understand its constraints.

#Swift #Caching

livsycode.com/best-practic...

Mvvm And Cost Of Old Patterns Blog about iOS development and musings on technology

🏗️ 𝑀𝑉𝑉𝑀 𝑎𝑛𝑑 𝑡ℎ𝑒 𝐶𝑜𝑠𝑡 𝑜𝑓 𝐶𝑎𝑟𝑟𝑦𝑖𝑛𝑔 𝑂𝑙𝑑 𝑃𝑎𝑡𝑡𝑒𝑟𝑛𝑠 𝐹𝑜𝑟𝑤𝑎𝑟𝑑 by Mohammad Azam (@azamsharp.bsky.social)

Is MVVM actually helping your SwiftUI apps, or adding unnecessary complexity? A provocative look at why familiar patterns might be holding you back.

#SwiftUI #Architecture

azamsharp.com/2026/03/04/m...

How to build a simple CLI tool using Swift Learn how to build a simple command-line tool using Swift, parse arguments, and create a solid foundation for automation and scripting.

🛠️ 𝐻𝑜𝑤 𝑡𝑜 𝑏𝑢𝑖𝑙𝑑 𝑎 𝑠𝑖𝑚𝑝𝑙𝑒 𝐶𝐿𝐼 𝑡𝑜𝑜𝑙 𝑢𝑠𝑖𝑛𝑔 𝑆𝑤𝑖𝑓𝑡 by Natascha Fadeeva

Want to create automation tools in Swift instead of bash? 𝐴𝑟𝑔𝑢𝑚𝑒𝑛𝑡𝑃𝑎𝑟𝑠𝑒𝑟 and Swift Package Manager make building structured command-line utilities straightforward.

#Swift #CLI

tanaschita.com/swift-cli-sc...

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Authors:
Natascha Fadeeva, @azamsharp.bsky.social, Artem Mirzabekian, @0xwdg.bsky.social, @donnywals.bsky.social, @avanderlee.com, @twostraws.bsky.social, @massicotte.org.

Never miss an issue → subscribe: ios-newsletter.snappmobile.io/subscribe

iOS Newsletter Issue 83 Hi folks,

📢 𝗜𝘀𝘀𝘂𝗲 𝟴𝟯 𝗶𝘀 𝗼𝘂𝘁!

On the agenda:
🛠️ 𝑆𝑤𝑖𝑓𝑡 𝐶𝐿𝐼 𝑇𝑜𝑜𝑙𝑠
🏗️ 𝑀𝑉𝑉𝑀 𝑖𝑛 𝑆𝑤𝑖𝑓𝑡𝑈𝐼
🗄️ 𝑁𝑆𝐶𝑎𝑐ℎ𝑒 𝐺𝑢𝑖𝑑𝑒
📊 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝐴𝑛𝑎𝑙𝑦𝑡𝑖𝑐𝑠
💰 𝑃𝑎𝑖𝑑 𝑡𝑜 𝐹𝑟𝑒𝑒𝑚𝑖𝑢𝑚
🤖 𝑀𝐶𝑃 𝑂𝑝𝑡𝑖𝑚𝑖𝑧𝑎𝑡𝑖𝑜𝑛𝑠
🎬 𝐴𝑔𝑒𝑛𝑡 𝑆𝑘𝑖𝑙𝑙𝑠 𝑖𝑛 𝑋𝑐𝑜𝑑𝑒
🧪 𝑇𝑒𝑠𝑡𝑖𝑛𝑔 𝐸𝑣𝑒𝑛𝑡 𝑆𝑡𝑟𝑒𝑎𝑚𝑠

#Swift #iOS #AI

ios-newsletter.snappmobile.io/issues/2026-...

📚 𝑆𝑜𝑠𝑢𝑚𝑖.𝑎𝑖 — 𝑀𝑎𝑘𝑖𝑛𝑔 𝐴𝑝𝑝𝑙𝑒 𝑑𝑜𝑐𝑠 𝐴𝐼-𝑟𝑒𝑎𝑑𝑎𝑏𝑙𝑒

Translates Apple Developer docs, HIG, and WWDC sessions into AI-friendly Markdown. Works via MCP, CLI, browser, or as an AI skill.

#Apple #AI #Documentation

sosumi.ai

How to build apps with AI: Xcode, Claude, Codex, and more! So many people have asked how I'm using AI to accelerate app development, so in this live stream I'll show you exactly what tools and I use and how. We'll look at the all-new agentic coding in Xcode…

🎬 𝐻𝑜𝑤 𝑡𝑜 𝑏𝑢𝑖𝑙𝑑 𝑎𝑝𝑝𝑠 𝑤𝑖𝑡ℎ 𝐴𝐼 by Paul Hudson (@twostraws.bsky.social)

If you watch just one tutorial on building apps with AI — Xcode, Claude, Codex — let it be this one. Paul's streams are packed with great stuff.

#Swift #AI #Xcode

www.youtube.com/watch?v=sc6p...

Core Data Agent Skill: Now available open-source Learn about the Core Data Agent Skill, a resource for developers using the traditional Core Data framework effectively.

🧠 𝐶𝑜𝑟𝑒 𝐷𝑎𝑡𝑎 𝐴𝑔𝑒𝑛𝑡 𝑆𝑘𝑖𝑙𝑙 by Antoine van der Lee (@avanderlee.com)

Working on an app with 𝐶𝑜𝑟𝑒𝐷𝑎𝑡𝑎? This open-source AI skill guides your agents to follow well-established patterns.

#CoreData #Swift #AI

www.avanderlee.com/ai-developme...

Building Wispr with Kiro: A Spec-First Approach to Swift Development Try it yourself: wispr.stormacq.com I spent the last day and a half building Wispr, a macOS menu bar app for local speech-to-text transcription. The app runs entirely on-device using OpenAI’s Whisper…

🤖 𝐵𝑢𝑖𝑙𝑑𝑖𝑛𝑔 𝑊𝑖𝑠𝑝𝑟 𝑤𝑖𝑡ℎ 𝐾𝑖𝑟𝑜 by Sébastien Stormacq (@sebsto.bsky.social)

A spec-first approach to Swift development with AI. The patterns here transfer easily to other coding agents - definitely worth reading.

#Swift #AI #Kiro

stormacq.com/2026/03/04/b...

Differentiate Without Color - Wesley de Groot Color is a powerful design tool, but relying solely on color to convey information creates accessibility barriers for users with color blindness or low vision. In this post, we'll explore how to make…

♿ 𝐷𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑡𝑖𝑎𝑡𝑒 𝑊𝑖𝑡ℎ𝑜𝑢𝑡 𝐶𝑜𝑙𝑜𝑟 by Wesley de Groot (@0xwdg.bsky.social)

Relying on color alone? Some users have color vision deficiencies. Learn about SwiftUI's 𝑎𝑐𝑐𝑒𝑠𝑠𝑖𝑏𝑖𝑙𝑖𝑡𝑦𝐷𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑡𝑖𝑎𝑡𝑒𝑊𝑖𝑡ℎ𝑜𝑢𝑡𝐶𝑜𝑙𝑜𝑟 environment variable.

#SwiftUI #Accessibility

wesleydegroot.nl/blog/differe...

How to use SwiftUI Coordinators to communicate with UIKit Learn how to use SwiftUI coordinators to bridge UIKit views, handle delegates, and send events back to SwiftUI when integrating UIKit components.

🔗 𝑆𝑤𝑖𝑓𝑡𝑈𝐼 𝐶𝑜𝑜𝑟𝑑𝑖𝑛𝑎𝑡𝑜𝑟𝑠 by Natascha Fadeeva

Bridging 𝑈𝐼𝐾𝑖𝑡 delegates back to SwiftUI? Coordinators are your essential link with 𝑈𝐼𝑉𝑖𝑒𝑤𝐶𝑜𝑛𝑡𝑟𝑜𝑙𝑙𝑒𝑟𝑅𝑒𝑝𝑟𝑒𝑠𝑒𝑛𝑡𝑎𝑏𝑙𝑒. A solid refresher.

#SwiftUI #UIKit

tanaschita.com/swiftui-coor...

Reverse Engineering NSVisualEffectView How NSVisualEffectView renders blur effects under the hood, and building a custom material view from scratch using CABackdropLayer.

🔍 𝑅𝑒𝑣𝑒𝑟𝑠𝑒 𝐸𝑛𝑔𝑖𝑛𝑒𝑒𝑟𝑖𝑛𝑔 𝑁𝑆𝑉𝑖𝑠𝑢𝑎𝑙𝐸𝑓𝑓𝑒𝑐𝑡𝑉𝑖𝑒𝑤 by Oskar Groth

Ever wondered how macOS blur effects really work? This deep dive challenges assumptions, explores alternatives, and shares fascinating discoveries.

#macOS #AppKit

oskargroth.com/blog/reverse...

Announcing Swift System Metrics 1.0: Process-Level Monitoring We are excited to announce the 1.0 release of Swift System Metrics, a Swift package that collects process-level system metrics like CPU utilization time and memory usage. Swift System Metrics runs on…

📦 𝑆𝑤𝑖𝑓𝑡 𝑆𝑦𝑠𝑡𝑒𝑚 𝑀𝑒𝑡𝑟𝑖𝑐𝑠 𝟣.𝟢 by Vladimir Kukushkin

A new official Swift package for process-level monitoring. Track CPU time, memory usage, and more - works on both Linux and macOS with a unified API.

#Swift #Monitoring

www.swift.org/blog/swift-s...