Room-Inspired Local Persistence in Swift: A Production GRDB Architecture
Introduction If you've built Android apps with Room, you already think in a layered persistence model: entities define your schema, DAOs handle querie…
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We built a budgeting app that skips the bank login — here's the trade-off
Most budgeting apps open with the same onboarding step: connect your bank account. For a certain group of people, that's where the process ends — not …
WWDC 2026 - What's New in SwiftData: Sectioned Queries, Codable Attributes, and Observers
WWDC 2026's "What's new in SwiftData" session is a tight, practical one. There's no sweeping redesign here, just four targeted additions that fill gap…
LLM на iPhone: от llama.cpp до Foundation Models
В 2025 году вместе с iOS 26 компания Apple представила разработчикам Apple Foundation Models. Теперь порог входа для on-device AI упал до нескольких с…
Weekly Dev Log 2026-W09
🗓️ This Week Completed the SwiftUI app development tutorial and tested the app I built on a real iPhone🦾 Learned the overall flow of building an iOS a…
Zero Data Leakage: Running Llama-3 Locally on iPhone with MLX-Swift for Ultra-Private Health Logs
Your health data is probably the most sensitive information you own. Yet, most "AI Health Assistants" today require you to ship your symptoms, moods, …
On-Device AI in SwiftUI Apps
Running AI models directly on a user's device used to be impractical. Today, with Apple's frameworks and the Neural Engine in modern iPhones and iPads…
Сетевой слой iOS‑приложения
Эта статья — не ревью чужого кода и не пересказ абстрактных паттернов. Это практическое описание того, как я подхожу к проектированию сетевого с…
Building a Native macOS Menu Bar Widget with SwiftUI and Glassmorphism
I recently open-sourced SysMonitor, a native macOS menu bar app for tracking system resources like CPU, RAM, Disk I/O, and Network speeds. I built it …
Building an unofficial Dumpert client for Apple TV with Swift 6 and SwiftUI
Dumpert is a Dutch video site I've watched for years, but there's never been an Apple TV app, so I built one. DumpertTV is an unofficial, open-source …
Keep Spaghetti in the Kitchen, Not in Your Swift Code: Mastering SOLID 🍝
Hey iOS Devs! 👋 Don't get me wrong, I love a good plate of Spaghetti Carbonara. But when it comes to iOS development, spaghetti belongs in the kitchen…
[iOS] Why Passthrough MP4 Export Failed for iPhone Videos
A user picks a video from Photos. The app turns that video into a file the server can accept. Then it uploads the file. On the surface, this sounds li…
Real-time object detection on iPhone with YOLO26
What is YOLO26 The latest object detection model, released by Ultralytics in January 2026. Compared to the previous-generation YOLO11, CPU inference i…
We built a weather app that stops pretending everyone feels the same temperature
Most weather apps answer the wrong question. They tell you it's 12°C outside. That's accurate. But whether 12°C means you need a coat depends entirely…
Building Calendar ToDo: Turning Calendar Events into a Done List with SwiftUI and EventKit
Sometimes I want to look back at my calendar and know not only what I planned, but what I actually did. For example: Did I finish my study session? Di…
How I made a perfect recording button. Simple yet complex thing.
Intro From the start of XSpeak , I wanted it to provide the best possible feel for the user: simple, fast, and responsive. Since it's a recording app,…
Why Reading Food Labels Shouldn't Feel Like Decoding a Chemistry Exam
Millions of people with dietary restrictions struggle with food labels every day. Here's the real problem — and how we built SafeScan to fix it. The H…
Building an Open Source One Sec Alternative: Breaking the Shortcuts Infinite Loop Thanks to iOS 26
If you've ever tried to build an iOS app that intercepts another app's launch, a custom launcher, a Screen Time blocker, a digital wellbeing tool, you…
We shipped an on-device Japanese braille reader — here's why offline-first was non-negotiable
The problem sitting in plain sight There's braille on train handrails, elevator buttons, and pill boxes all over Japan. Most people walk past it every…
We built a finance app that refuses to ask for your bank login
The problem with most expense trackers Most personal finance apps assume you'll hand over your bank credentials. The whole UX is designed around that …
I built GhostType: inline AI text completion for every app on macOS
Writing the same kind of sentences over and over — meeting replies, status updates, polite refusals — eats a surprising amount of the day. LLMs can fi…
I built my daughter a geography app. It took 67 days and zero dependencies.
Two months ago, I started building an iOS app for my daughter. This week, I shipped it. MapSprout is a US geography app for kids — they learn the 50 s…
Local Multimodal LLM on iOS with `llama.cpp` (Swift + ObjC++)
I want a real local pipeline: image in, structured JSON out, no cloud dependency. Optimized to run Metal / ANE or whatever apple exposes ? My goal is …
We shipped an app that counts your fidgets — here is why NEAT science pushed us to do it
The itch Levine's NEAT (Non-Exercise Activity Thermogenesis) research stopped us mid-scroll: habitual fidgeters can burn around 350 kcal more per day …
We built a braille reader that runs entirely on your iPhone — no server, no photos sent anywhere
The problem we kept noticing Braille is everywhere in Japan — train handrails, elevator buttons, pill packaging, ATM panels. Most people walk past it …
How I rebuilt the Codable migration pattern across 4 iOS apps in 2 hours
I was adding a single new feature to DaysUntil: yearly-recurring events. Twenty lines of product code. But underneath, the data layer needed a pattern…
Rejourney Session Replay Now Open Beta for Swift
After nearly 3 months of battle testing our React Native package, and recording over 1.5 million session replays from users all over the world, we now…
Mastering SwiftData: Building Persistent "Memory" for Your Next AI Chatbot
Imagine an AI chatbot that forgets everything the moment you close the app. Every interaction starts from scratch, every preference is lost, and the "…