Shortwave
Email · Shortwave
What it does: AI-powered email app for Gmail with an assistant that searches and drafts.
Who it's for: Gmail users who get lots of email.
Paid only Paid from $30/seat/month (Business) Last verified Oct 15, 2026
Spark Mail
Email · Readdle
What it does: Smart email app with AI writing and team features.
Who it's for: Individuals and small teams wanting a nicer email app.
Free plan available Paid from $8.25/user/month billed yearly (Plus) Last verified Oct 15, 2026