Internal vs External
Internal testers (in App Store Connect) get builds instantly. External testers require a Beta Review (usually <24h).
Public Links
Generate a URL to invite up to 10,000 testers. Share this on social media or email lists. No email collection needed upfront.
Tester Groups
Segment testers. "Nightly Build Team" gets unstable bleeding edge. "Marketing Team" gets Release Candidates. Assign specific builds to specific groups.
Feedback Collection
TestFlight allows screenshots with annotations. Feedback goes to App Store Connect. Monitor this daily during beta.
Build Expiration
Builds last 90 days. This force-updates users. Don't let a build expire without a replacement, or the app stops working.
Tester Engagement
Users download and forget. Send notification reminders via TestFlight to "Please test feature X" to prompt usage.
Release Notes
Write "What to Test". Be specific. "We fixed the login bug" is better than "Bug fixes". Guide the tester's attention.