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iOS

This tag is for anything related to Apple's iOS devices, operating system, and development environment. Development, usage, apps, tips, requests for help: if it's related to iOS it's welcome here!

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Parley: A Private Messenger Template You Can Brand

Parley: A Private Messenger Template You Can Brand

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6 min read
Why My iPhone File Picker Greyed Out Every PST File I Asked For

Why My iPhone File Picker Greyed Out Every PST File I Asked For

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4 min read
Why Your Watermark Is Tiny on One Photo and Huge on the Next: Resolution-Independent Overlays in Swift

Why Your Watermark Is Tiny on One Photo and Huge on the Next: Resolution-Independent Overlays in Swift

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7 min read
I built the same iOS & Android app five times to measure what sharing code really costs

I built the same iOS & Android app five times to measure what sharing code really costs

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5 min read
Getting My App Ready for iPhone Duo

Getting My App Ready for iPhone Duo

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3 min read
App Store screenshot sizes in late 2026: the new required slot and iPhone Duo

App Store screenshot sizes in late 2026: the new required slot and iPhone Duo

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2 min read
Fewest transfers was correct. It also told a stranger to pay my friend.

Fewest transfers was correct. It also told a stranger to pay my friend.

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6 min read
I Shipped HEIC Support. Then My iPhone Found 3 More Bugs.

I Shipped HEIC Support. Then My iPhone Found 3 More Bugs.

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2 min read
Design a Stock Trading App: A Mobile System Design Walkthrough

Design a Stock Trading App: A Mobile System Design Walkthrough

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7 min read
Design WhatsApp: A Mobile System Design Walkthrough

Design WhatsApp: A Mobile System Design Walkthrough

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9 min read
Building a manual camera app for iPhone: what I learned fighting for exact exposure values

Building a manual camera app for iPhone: what I learned fighting for exact exposure values

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3 min read
Your USDZ will be rejected by an iPhone — three packaging rules Apple doesn't negotiate

Your USDZ will be rejected by an iPhone — three packaging rules Apple doesn't negotiate

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3 min read
Apple Intelligence on Qwen in China: What Developers Need to Test Before iOS 27.3

Apple Intelligence on Qwen in China: What Developers Need to Test Before iOS 27.3

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5 min read
Get the App Store top free apps chart for any country with one curl (Apple RSS, no key)

Get the App Store top free apps chart for any country with one curl (Apple RSS, no key)

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1 min read
Search the App Store and look up app metadata with Apple's free iTunes API

Search the App Store and look up app metadata with Apple's free iTunes API

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1 min read
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