Transactional email
Pick up to 3 to compare side by side.
Free, then from $20/month for 50k emails
Email API for developers, with SDKs and React Email templates.
Best for: Best for a Next.js SaaS that wants login codes and receipts going out in an afternoon, with templates written in React.
Free plan: yesOpen source: noChecked on Oct 28, 2026 · official pricing
$0.10 per 1,000 emails
AWS email sending service, billed per thousand emails.
Best for: Best for a SaaS that already runs on AWS and sends a lot of email, where $0.10 per thousand keeps the bill tiny.
Free plan: noOpen source: noChecked on Oct 28, 2026 · official pricing
From $15/month for 10k emails
Transactional email service built around fast delivery to the inbox.
Best for: Best for a SaaS where a login code stuck in spam means a lost user, and fast, reliable delivery is worth paying a bit more.
Free plan: yesOpen source: noChecked on Oct 28, 2026 · official pricing
From $19.95/month (Essentials)
Twilio's email API and marketing platform for sending at scale.
Best for: Best for a SaaS that already uses Twilio for SMS or WhatsApp and wants email on the same account and support contract.
Free plan: noOpen source: noChecked on Oct 28, 2026 · official pricing
From $15/month for 10k emails
Email API for sending, receiving and tracking email.
Best for: Best for a SaaS that also needs to receive email, like replies that turn into tickets or comments inside the app.
Free plan: yesOpen source: noChecked on Oct 28, 2026 · official pricing
Free, then Starter from $9/month for 5k emails
Email marketing, automations and transactional email in one account, plus SMS and WhatsApp.
Best for: Best for a SaaS that wants receipts and newsletters in one tool, priced by emails sent rather than by contacts.
Free plan: yesOpen source: noChecked on Oct 28, 2026 · official pricing
