Superhuman

Superhuman is a premium email app designed to make you much faster at email. It works with Gmail and Outlook accounts and is built around speed: keyboard shortcuts for everything, a clean interface and features that help you reach inbox zero.

Its AI features write and edit emails in your own voice, summarise long threads in one line, answer questions about your inbox with Ask AI, and automatically sort messages into split inboxes. Other features include scheduled sending, reminders, read statuses, snippets and team sharing. Superhuman says its users save hours every week on email.

Good fit if you: handle a lot of email for work and are willing to pay to get through it faster.
Less ideal if you: send only a few emails a day; a free email client is enough.

Pricing: paid subscription with a free trial; team and enterprise plans available.