iOS app testing: TestFlight, devices and checks

Testing an iPhone or iPad app has three parts: getting builds to testers (TestFlight), choosing what to test on (devices and iOS versions), and knowing what to check. This hub orders the guides by the situation you are in. TestFlight is Apple's tool for distributing test builds; per Apple's overview, a build can be tested for up to 90 days, so plan test rounds with that in mind.

Guides

• Demo accounts and review notes for App Review Give reviewers working credentials and notes so your build is not rejected for access problems.
• Instructions to send TestFlight testers A short message with install steps, what to test and how to send feedback.
• Simulator or real iPhone: what each can test Where the simulator is enough and where only a real device shows the problem.
• Test in-app purchases with the iOS sandbox Sandbox accounts, renewal speeds and what to verify for subscriptions. Verify current behavior in docs.
• TestFlight setup: from upload to first tester Upload a build, add test information, create groups and invite testers. Verify steps in current docs.
• What to write in TestFlight test information Write the 'what to test' text so testers know the scope and reviewers can follow it.
• Which iOS versions to support Choose a deployment target from your own data and features, and test the boundary versions.
• Which iPhones to test on: a small, useful set A short set that covers screen sizes, notch styles and older hardware without owning many phones.
• iOS release checklist: from TestFlight to App Store Final checks, metadata, review notes and phased release for iOS apps.

Checklists

• Test Dynamic Type on iOS Check clipped labels, buttons and layouts at the largest text sizes.
• Test iOS permission prompts How to reset and re-run permission prompts and check wording, timing and denied states.
• VoiceOver test script for iOS apps Gestures and checks for a screen reader pass on iPhone.
• iOS App Review readiness checklist A checklist to run before submitting: completeness, links, accounts, privacy and metadata.
• iOS dark mode testing checklist Colors, images, launch screen, keyboards and web views in dark appearance.