is there any other you know which has All iboxes options like
Thunderbird has that. Under the Menu button, if you goto "folders", you can set it to "Unified". Then, there'll be something similar to "All Messages" in the folder pane. Specifically, there will be an "Inbox" view at the top that shows messages from all inboxes. Under that view though will be subviews so you can see messages for each individual inbox.
There are sent, drafts, archives, junk and trash views like that too.
After all those, you have each of your accounts separately where the other folders besides Inbox are shown.
As for "Unread", Thunderbird has a "view" setting where you can switch any view to only show unread. There's a drop-down for this that you can add to the toolbar.