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01Writing

Notes from the build.

What I learn shipping mobile apps — architecture decisions, App Store review, performance work, and the mistakes worth writing down.

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7 min read

The First Two Weeks After iOS 27 Ships

iOS 27 went public on September 14, 2026. A fourteen-day triage order for small teams: what to watch, what to hotfix, and what to deliberately defer.

  • iOS
  • Shipping
  • App Store
9 min read

One Bug, Ten Calls, Zero Answers

A duplicated API call burned a whole search quota before a single result came back. How to build budget guards into iOS apps on metered AI pricing.

  • iOS
  • Swift
  • AI
7 min read

Where a Price Rise Needs a Yes: Apple's Consent Map

Apple's subscription price-increase consent rule took effect August 4, 2025 — in Austria, Germany and Poland only. Here's the real map, and how to plan a rise.

  • App Store
  • Subscriptions
  • Product
6 min read

Don't Let an AI Tell You the Beta Number

Aggregators and AI summaries confidently invent Apple build numbers. Here's a primary-source watchlist for iOS teams, and how to verify before you schedule.

  • iOS
  • App Store
  • Shipping
6 min read

Xcode 27's Coding Agents: ACP, MCP, and Skills

Xcode 27 embeds coding agents via the Agent Client Protocol, MCP servers, and plugin-packaged skills. What's stable, and what the upgrade actually costs.

  • Xcode
  • iOS
  • AI
6 min read

iOS 27 Beta 5: Your Real Deadline Is August

Apple seeded iOS 27 developer beta 5 on August 10, 2026 and public beta 3 the next day. What to regression-test before the September launch.

  • iOS
  • SwiftUI
  • App Store