1. Superhuman

Superhuman is a premium email client that is raved about in the software space as one of the faster and more powerful emails, but how does it come in handy with AI?

It integrates with Gmail and Outlook and offers an intuitive AI-powered experience that can be used as part of the regular email experience you are used to, so there's no hideous learning curve here.

Main email AI features in Superhuman:

Powerful Search: Use natural language queries to find specific information, such as “What’s my passport number?” or “What’s the sponsorship deal I agreed to?” - very helpful for specific terms and it gets this 80% correct.
Event Creation: Generate calendar events directly from emails with AI, saving time on meeting administration.
Writing Assistance: Superhuman learns your email style to help draft and refine responses tailored to your communication tone.

Superhuman is one of the better email apps that uses AI on the market, the reason being is the focus on the latest abilities.

Their introduction of AI search was one of the first to do this, and their constant refinement of features for team AI, too, with snippets and smart send, is getting better and better, It is definitely an excellent choice for professionals seeking a streamlined email experience or even teams looking for something better.

Best AI Email Assistants for Smarter Productivity for 2025

Best AI Email Assistants for Smarter Productivity for 2025