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Email Marketing Comparison

Resend vs. Twilio SendGrid

At a glance

At a glance

Resend

Best for

Best for product and engineering teams that want transactional email, broadcasts and templates in the same codebase as the application that sends them.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Twilio SendGrid

Best for

Best for product and engineering teams that need transactional email at volume and want marketing campaigns on the same account.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Resend Twilio SendGrid
Starting price Free tier; Pro from $20 / month Transactional and marketing volume are billed separately. The transactional ladder runs Free, Pro from $20 per month and Scale from $90 per month, priced in bands by monthly email volume; marketing runs Free, Pro Marketing from $40 per month and Enterprise, priced by contact count. lower value From $15 / month Marketing Campaigns Basic starts at $15 per month, the Email API Essentials plan at $19.95 per month. Both scale in bands by contact count and monthly email volume.
Free trial Free tier: 3,000 emails per month, 100 per day, 3 domains, plus 1,000 marketing contacts 60-day free trial, 100 emails per day and 100 contacts
API Yes, REST API with official SDKs for Node.js, Python, PHP, Ruby, Go, Rust, Elixir, Java and .NET, plus a CLI, webhooks and an official MCP server Yes, REST API and SMTP relay with SDKs for Python, Ruby, Go, PHP, Java, C# and JavaScript, plus event webhooks
Hosting Cloud (SaaS) Cloud (SaaS)
Campaign types Transactional email over the API, broadcasts to contacts and segments, and inbound email by pointing MX records at Resend Email only, split between transactional sending through the Email API and marketing sends through Marketing Campaigns
Automation and journeys Yes, flows triggered by custom events from your own application, built from condition, delay, wait for event, send email, contact update, contact delete and add to segment steps, with a Runs view for debugging Yes, automated recurring emails and time-based drip series, available on the Marketing Campaigns Advanced plan
Segmentation and personalisation Yes, contacts with custom properties grouped into segments, plus Topics so recipients can opt in or out of individual categories Yes, dynamic segments over contact lists with custom fields and opt-out preference management
Templates and editor React Email, a component-based template system written in code; there is no drag-and-drop builder Yes, a drag-and-drop design editor and a custom HTML editor, with a library of free responsive templates
Deliverability and testing Domain verification with SPF, DKIM and DMARC, delivery event webhooks and event monitoring in the dashboard; dedicated IPs are a $30 per month add-on on Scale and above Yes, inbox rendering previews, spam testing and link validation, plus dedicated IPs, domain authentication and SPF, DKIM and DMARC
Ecommerce and CRM data Contacts are created and updated over the API or bulk-imported by CSV up to 200 MB, with custom properties carrying the data used for personalisation Contact lists with custom fields, and signup forms that add subscribers to those lists in real time through the API
Integrations and API Yes, REST API with bearer key authentication, a batch endpoint for up to 100 messages per request, SDKs for nine languages, a CLI, webhooks and an official MCP server Yes, REST API and SMTP relay, SDKs for seven languages and event webhooks for real-time delivery events
MCP-ready stated Yes No
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Email helpdesk more entries Email helpdesk, Chat, Phone
Onboarding Documentation and knowledge base more entries Documentation and knowledge base, Guided onboarding
Company size Freelancers, Small and mid-sized, Enterprise Freelancers, Small and mid-sized, Enterprise

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Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price Resend Free tier; Pro from $20 / month Twilio SendGrid From $15 / month
  • Free trial Resend Free tier: 3,000 emails per month, 100 per day, 3 domains, plus 1,000 marketing contacts Twilio SendGrid 60-day free trial, 100 emails per day and 100 contacts
  • Support Resend Email helpdesk Twilio SendGrid Email helpdesk, Chat, Phone
  • MCP-ready Resend Yes Twilio SendGrid No
  • API Resend Yes, REST API with official SDKs for Node.js, Python, PHP, Ruby, Go, Rust, Elixir, Java and .NET, plus a CLI, webhooks and an official MCP server Twilio SendGrid Yes, REST API and SMTP relay with SDKs for Python, Ruby, Go, PHP, Java, C# and JavaScript, plus event webhooks

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Resend

Strengths

  • Transactional sending, broadcasts, contacts and automations on one API and one account
  • Official SDKs for Node.js, Python, PHP, Ruby, Go, Rust, Elixir, Java and .NET, plus a CLI
  • Standing free tiers on both ladders rather than a time-limited trial
  • Inbound email by pointing MX records at Resend, delivered as webhooks
  • Official MCP server, so the platform can be driven by AI agents

Limitations

  • Templates are React components, so building an email needs a developer
  • Two separate price ladders, one for sending volume and one for contacts
  • Dedicated IPs, extra domains and SSO are priced as add-ons on top of the plan
  • SSO and dedicated IPs require the Scale plan or above
  • The free tier caps sending at 100 emails per day

Twilio SendGrid

Strengths

  • Transactional and marketing email on one account, so both build the same sender reputation
  • Deliverability tooling included: dedicated IPs, domain authentication, SPF, DKIM and DMARC, plus inbox rendering and spam tests
  • SDKs for Python, Ruby, Go, PHP, Java, C# and JavaScript, alongside SMTP relay and event webhooks
  • Real-time and bulk email address validation

Limitations

  • Email only, other channels mean buying a separate Twilio product
  • Automation in Marketing Campaigns requires the Advanced plan
  • The free offering is a 60-day trial, not a standing free tier
  • Two separate price ladders to compare, one per product

Plans

Pricing

Resend

  • Free $0 3,000 emails per month, capped at 100 per day, 3 domains, 10,000 automation runs and 30-day data retention. Marketing side is free up to 1,000 contacts.
  • Pro $20 Per month, 50,000 emails and 10 domains, no daily limit, 5 webhook endpoints. $35 per month for 100,000 emails. Overage $0.90 per 1,000 emails.
  • Scale $90 Per month, from 100,000 emails and 1,000 domains, 10 webhook endpoints and a dedicated Slack channel. Rises through $160, $350, $650, $825 and $1,150 per month up to 2.5 million emails, with the overage rate falling from $0.90 to $0.46 per 1,000.
  • Pro Marketing $40 Per month for 5,000 contacts, rising to $650 per month for 150,000 contacts.
  • Enterprise Not stated Custom volume and contact limits, a 99.99% uptime SLA, a dedicated customer success manager, migration support and flexible AI credits.
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Twilio SendGrid

  • Free trial $0 60 days. 100 emails per day and 100 contacts, with analytics and deliverability optimisation.
  • Email API Essentials $19.95 Per month, from 50,000 emails. Analytics, deliverability optimisation, one additional teammate and up to two event webhooks.
  • Email API Pro $89.95 Per month, from 100,000 emails and up to 2.5 million. Dedicated IP, subuser management, SSO, five event webhooks and included email validations.
  • Email API Premier Not stated Custom pricing for volumes above 5 million emails per month, with dedicated support.
  • Marketing Campaigns Basic $15 Per month, from 5,000 contacts and 15,000 emails. Ten email testing credits, five signup forms, ticket, chat and phone support.
  • Marketing Campaigns Advanced $60 Per month, from 10,000 contacts and 50,000 emails. Adds automation, dedicated IP access, 60 email testing credits and 15 signup forms.
  • Marketing Campaigns Custom Not stated Negotiated with sales for volumes above the Advanced plan.
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What users say

Review Scores · opens after launch

Resend

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Twilio SendGrid

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

Resend https://resend.com · checked against the official source on 2026-09-07

Twilio SendGrid https://www.twilio.com/en-us/sendgrid · checked against the official source on 2026-09-07

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.