Apps & platforms
Apple Development
App Store review, iOS tooling, and macOS troubleshooting.
Software development, in practice
Build useful software. Learn from real projects.
Tutorials, troubleshooting guides, and development notes on Apple platforms, programming fundamentals, and software releases.
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Find a starting point across software development and independent products.
Systems & fundamentals
Web & Backend Development
Concurrency concepts, capacity planning, and development tools.
Products & decisions
Indie Development
Product decisions, monetization, and lessons from building small tools.
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Troubleshoot a release, understand a concept, or examine a product decision.
App Store review
Fix ITMS-91053: Missing API Declaration in PrivacyInfo.xcprivacy
Published
A historical submission guide with the review message, a privacy declaration example, and Xcode setup steps.
Read articleProgramming fundamentals
Concurrency vs Parallelism: A Practical Programming Explanation
Published
A short introduction to concurrency and parallelism, with a visual explanation.
Read articleSubscription release
Apple Guideline 3.1.2: Fix Missing EULA and Privacy Policy Links
Published
A LingoBoard review case covering the app's Privacy Policy and Terms of Use links.
Read articleLatest Articles
Recent tutorials, development notes, and product decisions from the archive.
Apple Guideline 3.1.2: Fix Missing EULA and Privacy Policy Links
Resolve missing Terms of Use and Privacy Policy links in subscription apps, with a LingoBoard review case and checks for the app binary and metadata.
Read articleFix ITMS-91053: Missing API Declaration in PrivacyInfo.xcprivacy
Resolve ITMS-91053 by identifying the required-reason API category, declaring a matching reason in PrivacyInfo.xcprivacy, and checking the built bundle.
Read articleApp Store Guideline 5: A 2024 China Availability Rejection
Understand a 2024 China storefront rejection involving ChatGPT references, separate reviewer feedback from current law, and check distribution options.
Read articleApp Store Guideline 4.0: Reopen a Closed Mac App Window
Fix a Mac app review rejection caused by a closed window with no way to reopen it, using explicit window behavior and a review reproduction checklist.
Read article