Over 4 million people participate in Apple's software beta programs
Apple CEO Tim Cook reveals that an extraordinarily large number of people are taking part in the company's beta program, which covers early versions of iOS, macOS and the company's other major operating systems.

In an investor conference call following Apple's release of fiscal quarter three earnings on Thursday, Cook said some four million people are running beta software on their iPhone, iPad, Mac, Apple Watch and Apple TV devices.
"In June, we hosted an extremely successful developers conference that previewed many major advances coming this fall to our four operating systems: iOS, macOS, watchOS and tvOS," Cook said. "Developer and customer reaction has been very positive and we have over four million users participating in our new OS beta programs."
The number of beta program participants is not something that Apple typically releases, so it's unclear how that number compares to past years. Also unknown is how the participation statistics break down by operating system, and whether developers are included in the number.
Apple frequently touts both the growth of the App Store and its contributions to the app development profession as a whole, so it's a good guess that the four million figure for software beta participants in one year is among the largest ever for Apple, if not for the history of computing altogether.
At WWDC, Apple unveiled iOS 12, Mac OS 10.14, watchOS 5 and TV OS 12, and has periodically released beta editions of each in the weeks since. The full releases are scheduled for this fall.

In an investor conference call following Apple's release of fiscal quarter three earnings on Thursday, Cook said some four million people are running beta software on their iPhone, iPad, Mac, Apple Watch and Apple TV devices.
"In June, we hosted an extremely successful developers conference that previewed many major advances coming this fall to our four operating systems: iOS, macOS, watchOS and tvOS," Cook said. "Developer and customer reaction has been very positive and we have over four million users participating in our new OS beta programs."
The number of beta program participants is not something that Apple typically releases, so it's unclear how that number compares to past years. Also unknown is how the participation statistics break down by operating system, and whether developers are included in the number.
Apple frequently touts both the growth of the App Store and its contributions to the app development profession as a whole, so it's a good guess that the four million figure for software beta participants in one year is among the largest ever for Apple, if not for the history of computing altogether.
At WWDC, Apple unveiled iOS 12, Mac OS 10.14, watchOS 5 and TV OS 12, and has periodically released beta editions of each in the weeks since. The full releases are scheduled for this fall.
Comments
Seriously though it is a pretty good state of affairs compared the the diametric opposite on the iOS rip off AKA Android where no one seems to update let alone jump at the opportunity to play with the next great thing albeit in beta as soon as they can. I also suspect those participating are not complete morons and either dual boot or have backups. After doing this since the very first Mac OSX beta I have to say the stability of betas has been phenomenal. I found going back to OS 9 even after the very rudimentary OSX beta was starkly shocking to say the least. I think macOS Mojave has been as good as the rest in that respect. I suspect the introduction of APFS around the same time is probably making it seem scarier than most betas.
Has it led to better stability?
Which is all good but don't forget software developers on all platforms.
Personally, I wish Apple wouldn't do this: there's the risk to the users' service/data and there's the "pollution" of the web. The web issue starts when all these people running beta versions post stuff as if they're running the final version so, long after the beta programme is complete, searching for information about problems throws up beta problems (of which there are many, 'cos they're betas) that confuse the discussion of real, ongoing issues.
Either way, getting feedback on a new release is crucial. Being able to act on the feedback in a meaningful way is also important. If hundreds, much less thousands or millions of "testers" were to submit feedback into the development team it would very quickly overwhelm the development team. I'm sure that Apple handles the vast majority of the feedback using automated tools and analytics on the front end of their anomaly management and triage toolset.
I too have found the latest betas/previews to be quite stable.
I’ve also been using iOS 12 since the first public beta, and while 2 and 3 were prone to crashing a lot with the spinning symbol, something beta 3 shortened somewhat, today’s latest beta 4 hasn’t crashed on me yet, which is pleasing to see.
Can’t wait for it to go gold and for September to arrive, but all in good time, and iOS 12 public beta versions in the meantime! :-)
Either way it is a really large group, but I tend to think the 4 million number in this article is the correct figure.
i also think that there are those who post “first” without thinking, and those, as soon as a new version comes out, post that they are already downloading it. I’m sure there are also those who install a beta just because they can do it, and tell everyone that they are running a beta. How many people running the public betas actually spend the time to carefully inform Apple, through the Feedback app of the problems they are having? I wouldn’t be surprised if it were the majority.