To get started, ask in any Slack channel eigen beta? and Slack will respond with a invitation link to TestFlight and Play Store beta.
With that done, you should see this:
Which should eventually send an email invite, this will not be instant, and could be a few days away when we make our next beta. Which is when you'll get the email.
If you have questions and work in Artsy, ask in the #front-end-ios Slack channel. If you're just interested as an outsider, just open an issue on the repo.
For Developers: You can verify who is on the Artsy Beta here.
Testflight is like an App store for your beta invites, you are sent an invite in an email and it will connect your iOS device to our betas. To get started click the big "Start Testing" button. It will take you to the App Store to download the app. You can log in with your normal iTunes account. I'd recommend turning on push notifications.
The Artsy beta will replace your current version of the Artsy app.
Well, if you've got it all installed, then you can check out the Using The Eigen Beta page.