Mailmate on macOS is good

Mimestream on Mac implements GMail's keyboard shortcuts so there was no learning curve for me and I'm able to enjoy a desktop app experience.

This does seem pretty seamless to swap to, thanks!

Now to figure out iOS ;)

chiming in with thanks, i was looking to leave Superhuman also.

Is there a reason you prefer desktop apps over using email in the browser?

Mimestream user here: I can command-tab to an application.

Same here, I recently got frustrated with every email client, tried everything. Few days ago I finally decided to vibe code my own email client with Claude Code and I got a basic version running in a single day. Can’t wait to build it exactly the way I want, with programmable rules/filters and AI drafts for specific types of emails I get, conversion to plain text or dark mode for readability, contextual information in sidebars pulled from APIs (such as email history and customer support / CRM info), and one click actions in other apps.

I use (neo)mutt

In the same boat. Tried Notion Mail and it wasn't quite at Superhuman's level, though I do anticipate they'll improve it.

We're building what you want:

https://marcoapp.io

are you unifying the inbox across multiple mail accounts? (like apple Mail.app does)

Yes, that's one of our core USPs. It's possible to view one email account at a time, all at once, or any user-generated combination you might desire.

I’m using Shortwave and it’s nice! They’re also leaning into AI unfortunately but the core email experience is pretty good with nicer notification control and bundling features than Superhuman had.

After a day of trialing many apps, briefly settling on Gmail (iOS, and Unite to make a desktop app), I'm pretty happy with Spark for MacOS and iOS.

Simplehuman for Gmail is what I use. It's a light weight browser extension that makes Gmail work like Superhuman with the same keyboard shortcuts and natural language snooze. https://simplehuman.email

For fast, combined Google accounts with natural language prioritization, we're building https://wyntk.ai