We had hoped that it would eventually reveal juicy hints and tidbits about the phone, but unfortunately, it's only for invited guests like press and Samsung's VIP partners.
"The Unpacked 2017 app is for invited guests to verify credentials and get the latest event information 24-7," a Samsung spokesperson told CNET.
Everyone else can watch the livestream of the Unpacked event at www.samsung.com and follow along with CNET's live tweets.
The Galaxy S8 is Samsung's shot at redemption after the Galaxy Note 7 recall left customers questioning Samsung's ability to create safe phones. Anything Samsung can do to drum up support will put it in a stronger position to sell the phone.
If you were to download the app, you'd find a clock counting down the time until the March 29 event. You can scroll up to see more info about the event itself, like the location (New York's Lincoln Center) and event start time (11 a.m. ET). Scrolling down will bring you to the app's page for event videos. There are two right now (find them both here).
Until then, the rumors are coming steadily. Read up on everything we know and think we know about the Galaxy S8 (and S8 Plus) here.
Article updated March 16 at 9:20 a.m. PT with Samsung comment.