https://appflight.dev/learn/ Guides on building and shipping native iOS apps with AppFlight. https://appflight.dev/learn/glossary/what-is-the-idfa/ https://appflight.dev/learn/glossary/what-is-the-idfa/ The IDFA, or Identifier for Advertisers, is a per-device ID Apple uses for ad measurement. Here is what the IDFA is and how ATT changed it. https://appflight.dev/learn/glossary/what-is-swift-package-manager/ https://appflight.dev/learn/glossary/what-is-swift-package-manager/ Swift Package Manager is Apple official tool for managing Swift code dependencies. Here is what Swift Package Manager is and how it works. https://appflight.dev/learn/glossary/what-is-storekit/ https://appflight.dev/learn/glossary/what-is-storekit/ StoreKit is Apple framework for in-app purchases, subscriptions, and App Store features. Here is what StoreKit does and how StoreKit 2 differs. https://appflight.dev/learn/glossary/what-is-no-code/ https://appflight.dev/learn/glossary/what-is-no-code/ No-code is a way to build software with visual tools instead of writing code, so non-developers can create apps and workflows. Here is how it works. https://appflight.dev/learn/glossary/what-is-mrr/ https://appflight.dev/learn/glossary/what-is-mrr/ MRR, or Monthly Recurring Revenue, is the predictable monthly revenue from active subscriptions. Here is how MRR is calculated and why it matters. https://appflight.dev/learn/glossary/what-is-ltv/ https://appflight.dev/learn/glossary/what-is-ltv/ LTV, or lifetime value, is the total revenue you expect from an average user over their lifetime. Here is how LTV is calculated for an app. https://appflight.dev/learn/glossary/what-is-info-plist/ https://appflight.dev/learn/glossary/what-is-info-plist/ Info.plist is the property list file that stores an iOS app configuration and metadata, including version and privacy strings. Here is how it works. https://appflight.dev/learn/glossary/what-is-freemium/ https://appflight.dev/learn/glossary/what-is-freemium/ Freemium is a model that offers a product free and charges for premium features or higher limits. Here is how the freemium model works for apps. https://appflight.dev/learn/glossary/what-is-cocoapods/ https://appflight.dev/learn/glossary/what-is-cocoapods/ CocoaPods is a dependency manager for Swift and Objective-C iOS projects. Here is what CocoaPods is, how it works, and its status today. https://appflight.dev/learn/glossary/what-is-churn-rate/ https://appflight.dev/learn/glossary/what-is-churn-rate/ Churn rate is the percentage of users or subscribers who cancel over a period. Here is how churn rate is calculated and why it matters for apps. https://appflight.dev/learn/glossary/what-is-app-tracking-transparency/ https://appflight.dev/learn/glossary/what-is-app-tracking-transparency/ App Tracking Transparency (ATT) is Apple framework requiring apps to ask permission before tracking users across other apps. Here is how it works. https://appflight.dev/learn/glossary/what-is-apns/ https://appflight.dev/learn/glossary/what-is-apns/ APNs, the Apple Push Notification service, delivers push notifications to Apple devices. Here is what APNs is and how it works. https://appflight.dev/learn/glossary/what-is-an-xcframework/ https://appflight.dev/learn/glossary/what-is-an-xcframework/ An XCFramework is an Apple bundle that packages a compiled library for multiple platforms and architectures. Here is what an XCFramework is. https://appflight.dev/learn/glossary/what-is-an-openai-api-key/ https://appflight.dev/learn/glossary/what-is-an-openai-api-key/ An OpenAI API key is a secret credential that authenticates and bills your requests to the OpenAI API. Here is what it is and how to keep it safe. https://appflight.dev/learn/glossary/what-is-an-ipa-file/ https://appflight.dev/learn/glossary/what-is-an-ipa-file/ An IPA file is the packaged, signed archive used to distribute and install an iOS app. Here is what is inside an IPA file and how it is used. https://appflight.dev/learn/glossary/what-is-an-auto-renewable-subscription/ https://appflight.dev/learn/glossary/what-is-an-auto-renewable-subscription/ An auto-renewable subscription is an in-app purchase that renews automatically until canceled. Here is how auto-renewable subscriptions work on iOS. https://appflight.dev/learn/glossary/what-is-an-apple-developer-account/ https://appflight.dev/learn/glossary/what-is-an-apple-developer-account/ An Apple Developer account is the paid Apple Developer Program membership needed to publish iOS apps. Here is what it includes and what it costs. https://appflight.dev/learn/glossary/what-is-an-app-privacy-nutrition-label/ https://appflight.dev/learn/glossary/what-is-an-app-privacy-nutrition-label/ An App Privacy nutrition label is the App Store summary of the data an app collects and how it is used. Here is what it shows and who fills it out. https://appflight.dev/learn/glossary/what-is-a-hybrid-app/ https://appflight.dev/learn/glossary/what-is-a-hybrid-app/ A hybrid app is a mobile app built with web technologies and wrapped in a native shell so it installs from an app store. Here is how hybrid apps work. https://appflight.dev/learn/glossary/what-is-a-distribution-certificate/ https://appflight.dev/learn/glossary/what-is-a-distribution-certificate/ A distribution certificate is the Apple certificate that signs an iOS app for TestFlight and the App Store. Here is how it works. https://appflight.dev/learn/glossary/what-are-universal-links/ https://appflight.dev/learn/glossary/what-are-universal-links/ Universal Links are https deep links that open content in your iOS app when installed and fall back to the web when not. Here is how they work. https://appflight.dev/learn/glossary/what-are-entitlements/ https://appflight.dev/learn/glossary/what-are-entitlements/ Entitlements are key-value permissions that grant an iOS app access to protected capabilities like push notifications and iCloud. Here is how they work. https://appflight.dev/learn/glossary/what-are-deep-links/ https://appflight.dev/learn/glossary/what-are-deep-links/ A deep link is a URL that opens an app directly to a specific screen. Here is how deep links work on iOS and how they differ from Universal Links. https://appflight.dev/learn/glossary/what-are-app-clips/ https://appflight.dev/learn/glossary/what-are-app-clips/ An App Clip is a lightweight piece of an iOS app that runs a single task without a full install. Here is what App Clips are and how they work. https://appflight.dev/learn/glossary/swift-package-manager-vs-cocoapods/ https://appflight.dev/learn/glossary/swift-package-manager-vs-cocoapods/ Swift Package Manager vs CocoaPods: how the two iOS dependency managers differ, and which one to use for a new project today. https://appflight.dev/learn/glossary/no-code-vs-low-code/ https://appflight.dev/learn/glossary/no-code-vs-low-code/ No-code vs low-code compares two ways to build software: no-code uses visual tools only, low-code mixes visual tools with custom code. https://appflight.dev/learn/glossary/freemium-vs-subscription/ https://appflight.dev/learn/glossary/freemium-vs-subscription/ Freemium vs subscription compares offering a free tier against charging recurring access. Here is how the two models differ and overlap for apps. https://appflight.dev/learn/ship/ios-provisioning-profiles-explained/ https://appflight.dev/learn/ship/ios-provisioning-profiles-explained/ What an iOS provisioning profile is, the four types, how they pair with certificates, and how AppFlight handles distribution signing for you. https://appflight.dev/learn/ship/ios-code-signing-explained/ https://appflight.dev/learn/ship/ios-code-signing-explained/ What iOS code signing is, how certificates and provisioning profiles fit together, the difference between development and distribution, and how AppFlight handles it. https://appflight.dev/learn/ship/how-to-write-an-app-store-description/ https://appflight.dev/learn/ship/how-to-write-an-app-store-description/ How to write an App Store description that converts: the field limits, a structure that works, ASO basics, and how AppFlight drafts the listing for you. https://appflight.dev/learn/ship/how-to-write-an-app-privacy-policy/ https://appflight.dev/learn/ship/how-to-write-an-app-privacy-policy/ Every App Store app needs a privacy policy URL. What the policy must cover, where the URL goes in App Store Connect, and how AppFlight fits the flow. https://appflight.dev/learn/ship/how-to-upload-an-app-to-app-store-connect/ https://appflight.dev/learn/ship/how-to-upload-an-app-to-app-store-connect/ How to upload an iOS build to App Store Connect in 2026: what the build needs, the upload tools, processing, and how AppFlight uploads it for you. https://appflight.dev/learn/ship/how-to-set-a-bundle-id/ https://appflight.dev/learn/ship/how-to-set-a-bundle-id/ What a bundle ID is, the reverse-DNS format, explicit versus wildcard App IDs, why you cannot change it later, and how AppFlight sets it for you. https://appflight.dev/learn/ship/how-to-request-an-expedited-app-review/ https://appflight.dev/learn/ship/how-to-request-an-expedited-app-review/ How to request an expedited App Store review: the form, valid reasons, what to write, and why it is granted sparingly. Plus how AppFlight fits the flow. https://appflight.dev/learn/ship/how-to-create-app-store-screenshots/ https://appflight.dev/learn/ship/how-to-create-app-store-screenshots/ What Apple requires for App Store screenshots, how to make ones that convert, and how to capture and upload them. AppFlight can generate them for you. https://appflight.dev/learn/ship/how-to-add-testflight-internal-testers/ https://appflight.dev/learn/ship/how-to-add-testflight-internal-testers/ How to add internal testers to TestFlight: the role requirement, the 100 tester limit, and the steps in App Store Connect. AppFlight uploads the build. https://appflight.dev/learn/ship/how-much-does-an-apple-developer-account-cost/ https://appflight.dev/learn/ship/how-much-does-an-apple-developer-account-cost/ The Apple Developer Program costs 99 USD per year. What that covers, the Enterprise price, fee waivers, and what AppFlight handles once you enroll. https://appflight.dev/learn/ship/export-compliance-and-encryption-for-the-app-store/ https://appflight.dev/learn/ship/export-compliance-and-encryption-for-the-app-store/ How App Store export compliance works: the encryption question, the ITSAppUsesNonExemptEncryption key, common exemptions, and how AppFlight handles it. https://appflight.dev/learn/ship/complete-guide-to-shipping-an-ios-app-2026/ https://appflight.dev/learn/ship/complete-guide-to-shipping-an-ios-app-2026/ A complete 2026 walkthrough of shipping an iOS app: account, build, signing, App Store Connect, TestFlight, metadata, review, and how AppFlight runs it. https://appflight.dev/learn/ship/apple-developer-program-enrollment-guide/ https://appflight.dev/learn/ship/apple-developer-program-enrollment-guide/ What the Apple Developer Program gives you, individual versus organization enrollment, the steps to enroll, and how it connects to shipping with AppFlight. https://appflight.dev/learn/ship/app-store-age-rating-questionnaire-2026/ https://appflight.dev/learn/ship/app-store-age-rating-questionnaire-2026/ The 2026 App Store age rating system uses 4+, 9+, 13+, 16+, and 18+. What changed, how to answer the questionnaire honestly, and how AppFlight fits. https://appflight.dev/learn/ship/app-privacy-nutrition-label-guide/ https://appflight.dev/learn/ship/app-privacy-nutrition-label-guide/ What the App Store privacy nutrition label is, how to answer the data collection questions, and how privacy manifests and required reason APIs fit in. https://appflight.dev/learn/ship/app-icon-requirements-and-sizes/ https://appflight.dev/learn/ship/app-icon-requirements-and-sizes/ App Store icon requirements in 2026: the 1024 by 1024 master, the format rules, how Xcode generates the rest, and how AppFlight designs the icon for you. https://appflight.dev/learn/rejections/support-url-not-functional-rejection-fix/ https://appflight.dev/learn/rejections/support-url-not-functional-rejection-fix/ Apple rejected your app because the support URL is broken or has no contact method. Here is what Guideline 1.5 requires and how to fix it. https://appflight.dev/learn/rejections/privacy-manifest-required-reason-api-rejection/ https://appflight.dev/learn/rejections/privacy-manifest-required-reason-api-rejection/ Apple flagged a missing required reason API declaration in your privacy manifest. Here is what the rule means, why it happens, and how to fix it. https://appflight.dev/learn/rejections/itms-90809-deprecated-uiwebview-api-fix/ https://appflight.dev/learn/rejections/itms-90809-deprecated-uiwebview-api-fix/ Got ITMS-90809 on upload? It flags the deprecated UIWebView API. Here is what the error means, why it happens, and how to migrate to WKWebView. https://appflight.dev/learn/rejections/itms-90683-missing-purpose-string-fix/ https://appflight.dev/learn/rejections/itms-90683-missing-purpose-string-fix/ Got ITMS-90683 on upload? Your Info.plist is missing a purpose string for a privacy API like the camera or photos. Here is what it means and how to fix it. https://appflight.dev/learn/rejections/guideline-5-1-2-app-tracking-transparency-rejection/ https://appflight.dev/learn/rejections/guideline-5-1-2-app-tracking-transparency-rejection/ Apple rejected your app under Guideline 5.1.2 for tracking without the ATT prompt. Here is what 5.1.2 covers and how to add the permission request. https://appflight.dev/learn/rejections/guideline-5-1-1-forced-registration-rejection/ https://appflight.dev/learn/rejections/guideline-5-1-1-forced-registration-rejection/ Apple rejected your app for forcing sign-in under Guideline 5.1.1(v). Here is what the rule requires and how to let people use the app first. https://appflight.dev/learn/rejections/guideline-4-0-app-looks-like-a-website-rejection/ https://appflight.dev/learn/rejections/guideline-4-0-app-looks-like-a-website-rejection/ Apple rejected your app under Guideline 4.0 (Design) for looking like a website. Here is what 4.0 covers, why it happens, and how to fix it.