Google Inbox Checker (Inbox by Gmail)

Now you can keep track your Google Inbox (Inbox by gmail) unread emails!

Shows the number of emails you need to take care of in your Inbox.
Desktop and sound notifications for new emails.
Option to select the active account for multiple accounts users.

Only emails in 'Inbox' label are counted, Ignoring 'Done' and 'Snoozed' labeled emails.
Auto-refresh when Google Inbox tab is open.