Mailbox service, which once bought Dropbox, is closed from February 26

For those who have not used: Mailbox is a mail client for iOS, Android, OSX, Windows. He only integrated with Gmail.

The main difference from regular mail clients is the use of the 'Inbox Zero' principle, which turns the “inbox” folder into the to-do list and suggests striving to keep it empty.



To clear incoming emails, you could swipe right or left; these gestures later appeared in other email clients: Mail for iOS, inbox, etc. However, I like the implementation of svaypov most of all in the Mailbox.

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Also for me, a very important moment was the possibility to postpone the letters / tasks for any period after which they reappeared in the inbox.

Actually I would like to discuss any alternatives for this service.
I'd love to see the following things:

• iOS client
• MacOS client
• possibility to postpone a letter for a certain period
• comfortable gestures
• Gmail sync
• opportunity to work with Gmail and through the web

On the website of the company you can find more detailed information.

Update: summarize my research

1. First place: Inbox
   
   • You can postpone letters: snooze
   • It is possible to work from the desktop (through the browser)
   • Gestures work in the mobile client
   • You can postpone the letter by geolocation tag. He came home, and received a reminder to call Gennady.
   • And it's all free.
   
   
2. Second place: surprise! ... Outlook
   
   • You can postpone letters: snooze
   • There is an opportunity to work with the desktop, which probably everyone knows
   • In the mobile client, gestures work and it is free.
   • In general, the quality of the mobile client is high
   • Desktop client is very decent: 6320 ₽
   
   
   
3. There is no third place, because everything else did not fit my strict requirements