If you're looking for a Superhuman alternative, Shortwave is definitely worth a look. It uses AI to handle your email, with features like AI-written emails, smart search and customizable tabs. It also handles multiple email services and offers different pricing plans depending on your needs.
Another top contender is Spark. This app is geared more toward getting your email workflow in order, with features like sender grouping and done markers. It can handle multiple email services and offers team collaboration tools, so it's good for individuals and teams trying to get more out of their email.
If you're looking for something that specifically integrates with Gmail, Ready to Send lets you generate AI-written email replies. It can give you a fast, personalized response to messages and keep your inbox uncluttered when you're stuck with writer's block. It works with Gmail apps on phones, tablets and PCs and supports multiple languages.
Last is MailMaestro, which stands out with AI-written emails, personalization and encryption for private communications. It works with both Outlook and Gmail, and has a range of productivity features like detecting meeting requests and text shortcuts, so it's good for individuals and businesses.