The service, which is still in beta, rolled out to limited users on Wednesday. Users who emailed firstname.lastname@example.org could request an invitation, but only Google employees had the ability to invite others. But now, that’s changed.
If you have Inbox, just hover over the “+” icon (or tap it on iOS or Android), and look for the golden-ticket icon above the “Compose” icon. It says “Invite to Inbox.” Select it, and enter the email address of the person you want to invite.
I was allotted three Inbox invitations, but the number that users can send out will probably increase, as Google allows more people to join the service.
A few Inbox notes
Still, because the app is in beta, there are several things that new users should keep in mind.
First, as Mashable deputy editor Chris Taylor mentioned in his hands-on,
Inbox only works with personal Gmail accounts at the moment
Inbox only works with personal Gmail accounts at the moment. That means if you use a Google Apps account for a custom email address, or for work or school, you won’t be able to use Inbox — at least not yet.Second, it’s important to note that although Inbox uses Gmail, it isn’t necessarily a replacement for Gmail. You can use the two systems side by side, or just use Inbox as a way to deal with priority messages. Still, as Taylor wrote in his piece, it still feels like Google has a slight identity crisis going on.
I don’t use my Gmail account very often, but in the few days I’ve had Inbox, I’ve like its general concept. Hopefully, Google Apps support will come soon because my work email is the account that really needs help.
Google says it is rolling out new invites to Inbox every week, so if you can’t find a friend with an invite, email email@example.com to get your name on the list.