Deep‑link crashes in Expo Router when the app hits real traffic
The situation You are a mobile lead on a React Native product that just shipped version 2.4 with Expo Router 2.1.0. The release added a “share‑to‑ap…
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I built the running coach that actually listens to your body
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built I run with Nike Run Club. It tracks every run w…
CodeMate — Read and Edit Code on Your iPhone and iPad
A native code editor for developers who want to work with source files away from their desk. CodeMate helps you read, navigate, and edit source code…
Your Push Request Succeeded. The Device Key Is Dead.
Your server sends a push request and gets a successful response. Somewhere in the target list is a device key that stopped working weeks ago. The re…
I Vibe Coded My First iOS App With AI — Here’s What I Learned
Hi! I’m Nika, I’m 22, and a few months ago I decided to build my first iOS app. I wanted to make something I would genuinely use myself, publish it…
I Built an iPhone App That Makes Going Live Way Simpler Frome Meta Glasses
I built King Coop for independent artists and creators I’m an independent artist myself, and I wanted to build something that gives smaller artists…
Building SayHi: An Ephemeral Proximity Discovery iOS App with SwiftUI & MapKit
Introduction: Why Another Nearby Discovery App? Traditional social networks are optimized for permanent connections and algorithmic feeds, while mod…
Deferred Deep Links in iOS: Complete Integration Guide
Universal Links solve exactly one case: a user who already has your app taps a link and iOS hands it straight to scene(_:continue:) . They do nothin…
RemoteMac
I wanted to control my Mac from my iPhone from anywhere , not just when both devices are on the same Wi-Fi. So I built RemoteMac — an open-source re…
I Built SnapList to Make Product Research Less Messy
When I’m researching something I want to buy, I usually end up with the same problem: Too many tabs. Too many screenshots. Too many links. And event…
We built a video editor with automatic captions + a teleprompter because making short-form videos shouldn’t require 3 different apps
Hi, My name is Andrew. For the last 6 months, we’ve been working on Captions Bro, a video editor for iPhone and iPad built specifically around creat…
Agents Shouldn't Blink
Field notes · simframe · iOS Simulator The observation What I noticed watching Claude test my app I had asked Claude Code to check a fix on the iOS…
iOS 27 Just Redefined Swift: 5 Game-Changing Features Every iOS Developer Must Master
If you’ve been building iOS applications over the last few years, you are already familiar with the shift toward declarative UI and structured concu…
How to connect Intune with Apple Business Manager (ABM) and enroll iPhones with Automated Device Enrollment (ADE)
About this article Intended audience : IT and endpoint management admins who want to manage corporate-owned iPhones / iPads with Intune What you'll…
Idempotency: Protecting User Intent Beyond the Buy Button
User bought some stock but the network is slow. There is no immediate feedback, so out of frustration, they tap the Buy button several times. A few…
iOS Visual Regression Testing with simctl and Pixel Diffs
A practical UIKit screenshot pipeline, a paywall layout bug, and the failure modes to fix before trusting CI. iOS visual regression testing can star…
I kept failing interviews on delivery, so I built a practice coach that scores eye contact
The answers were usually fine. The first 90 seconds were not. I would leave a call knowing what I meant to say, and also knowing I had looked at the…
Why QR Pairing Beats IP Addresses for Local-First Device Sync
A local-first app still needs a good answer to one basic question: how does a person know that the phone in their hand is connecting to the right co…
I built an iOS alarm that makes you scan a QR code across the room to turn it off
The problem I'm a heavy sleeper. Not "hit snooze once" heavy. I would turn off three stacked alarms in my sleep and wake up an hour late with zero m…
Your App Store reviewer is a user. Your listing is a product page.
Most submission guides are engineering documents. They explain how to make the technical parts work. Almost none treat submission as a UX problem, w…
I Built NameSnap With Codex: Five Lessons About AI-Generated App Design
I built an app as an experiment with Codex's design capabilities. The app is called NameSnap Picker. It helps teachers, streamers, coaches, parties,…
I set the font to the largest size and found the same bug eleven times
I was cleaning up the UI on a side-project iOS app and did one thing: set Dynamic Type to XXXL and screenshot every screen. Reading the code had tur…
How I Built an AI-Powered Reel & Short Maker in Swift: Handling Auto-Cutouts & Beat-Syncing Efficiently
Hey DEV community! 👋 As an indie iOS developer, I’ve always been fascinated by short-form video algorithms and how visual retention works. Over the…
Ad-Hoc distribution vs TestFlight in React Native — a practical comparison
If you're testing an iOS build with real devices, you've got two main paths: Apple's TestFlight, or Expo's EAS Preview using Ad-Hoc provisioning. Th…
The three hard constraints of an iOS keyboard extension
A custom keyboard on iOS looks like a small UIKit app. It is not. It is a UIInputViewController living inside an extension process with rules that n…
Building an iPhone Messenger Without Accounts or Central Servers
Most encrypted messengers protect message contents, but their account systems still know that an account exists. They may also retain information ne…
Writing a new code/text editor for the iPad
I've always loved the iPad, but it has never really felt like a replacement for my laptop. When the M4 iPad Pro 13-inch with an OLED nano-texture di…
I built a free tool to translate Android, iOS, and Flutter string files (and here's how the translation actually works under the hood)
Every time I've localized an app, it's gone one of two ways: hand-translate the strings myself (slow, and my Spanish/French/whatever is not great),…
How to Overcome TestFlight User Limits
Originally published on the BetaDrop blog . Apple's TestFlight is the gold standard for iOS beta testing. It's built right into the ecosystem and ea…
I automated my weight logging into Notion, and gave myself a new daily chore
What I wanted I'm building a system where all my daily records live in Notion, so I can point an AI at it and get feedback. Goals, tasks, daily logs…