The index
Every AI tool we’ve actually used.
Every tool in the catalog, ranked by editorial weight × sponsorship tier × popularity. Hand-picked for working professionals.
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Klaviyo — email tool curated for working operators.
Mailchimp — email tool curated for working operators.
Customer.io — email tool curated for working operators.
Hunter — email tool curated for working operators.
ActiveCampaign — email tool curated for working operators.
Newsletter platform built by the Morning Brew team.
Email + automation built for creators.
Ghost — email tool curated for working operators.
Email API built by the React Email team.
Turn a shared Gmail inbox into a real support helpdesk.
Omnisend — email tool curated for working operators.
Brevo — email tool curated for working operators.
NeverBounce — email tool curated for working operators.
Constant Contact — email tool curated for working operators.
Campaign Monitor — email tool curated for working operators.
ZeroBounce — email tool curated for working operators.
Flodesk — email tool curated for working operators.
Email API and marketing platform at scale.
Cold email outreach with personalization at scale.
Modern email platform for SaaS — transactional and marketing in one.
Substack — email tool curated for working operators.
Mailtrap — email tool curated for working operators.
Reliable transactional email API for developers.
Shared inbox + collaboration.
Gmail with Gemini AI features.
Simple email marketing built for creators and small teams.
Open-source AI assistant for Gmail that drafts, archives, and unsubscribes.
Send later, follow-up reminders, and AI writing inside Gmail.
AI-native email client.
Shared inbox for customer-facing teams.
AI-sorted inbox that learns what you actually care about.
Outlook with Microsoft Copilot.
EmailOctopus — email tool curated for working operators.
Buttondown — email tool curated for working operators.
Email with native Notion integration.
MailerLite Classic — email tool curated for working operators.
Loops Transactional — email tool curated for working operators.
Transactional email API and deliverability platform.
Conversational email + collaboration.
AI email autopilot.
Fast email + AI assistance.
Smart assistant for Apple Mail, Outlook, and Gmail with AI summaries.
Mail merge with AI for Gmail.
AI email reply generator.
Interactive AMP email platform.
Email client built for sales teams with tracking and sequences.
AI assistant for Outlook + Gmail.
Deliverability checker.
Mobile-first email client with assistant, unsubscribe, and breach alerts.
Email + SMS marketing for ecommerce.
Email marketing + automation + landing pages.
Multichannel email + SMS + chatbot platform.
Cross-platform AI email for teams.
Opinionated email by 37signals.
Calendar-first email client.
Unified inbox + integrations for Windows.
Premium cross-platform email with read receipts.
Mac/iOS email client with deep customization.