TestFlight
iOS betas: up to 10,000 external testers via public link or invites.
TestFlight is the native way to ship iOS betas: internal testing for up to 100 people, external for up to 10,000. Gathering them manually hurts, and a public link brings random people who grab the build and go silent.
In a campaign, the link goes to someone who applied and is ready to report back: two weeks of beta, screenshots, bugs. The developer sees real participants, not empty downloads.
[✓]up to 10,000 external testers
[✓]public link or email invites
[✓]feedback with screenshots, not silence
[✓]karma for two honest weeks