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Email Marketing Comparison

Omnisend vs. Resend

At a glance

At a glance

Omnisend

Best for

Best for ecommerce stores that want email, SMS and web push in one platform, with ready integrations for Shopify, BigCommerce and WooCommerce.

  • Small and mid-sized
  • Enterprise

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

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

Full Comparison

Criterion Omnisend Resend
Starting price lower value From $16 / month Standard plan for up to 500 contacts, billed monthly; the price scales with the number of contacts. A free plan is also available. 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.
Free trial Free plan for up to 250 contacts and 500 emails per month Free tier: 3,000 emails per month, 100 per day, 3 domains, plus 1,000 marketing contacts
API Yes, API access on all plans 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
Hosting Cloud (SaaS) Cloud (SaaS)
Campaign types Yes, email campaigns, SMS and MMS, and web push notifications Transactional email over the API, broadcasts to contacts and segments, and inbound email by pointing MX records at Resend
Automation and journeys Yes, automation workflows across email, SMS and push 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
Segmentation and personalisation Yes, unlimited segmentation and contact profiles on all plans Yes, contacts with custom properties grouped into segments, plus Topics so recipients can opt in or out of individual categories
Templates and editor Yes, a drag-and-drop editor with email templates React Email, a component-based template system written in code; there is no drag-and-drop builder
Deliverability and testing Yes, A/B testing on all plans 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
Ecommerce and CRM data Yes, ecommerce integrations for Shopify, BigCommerce, WooCommerce, WordPress and Wix 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
Integrations and API Yes, API access on all plans 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
MCP-ready No stated Yes
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Not stated Email helpdesk
Onboarding Not stated Documentation and knowledge base
Company size Small and mid-sized, Enterprise more entries Freelancers, Small and mid-sized, Enterprise

Compare more tools

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 Omnisend From $16 / month Resend Free tier; Pro from $20 / month
  • Free trial Omnisend Free plan for up to 250 contacts and 500 emails per month Resend Free tier: 3,000 emails per month, 100 per day, 3 domains, plus 1,000 marketing contacts
  • Company size Omnisend Small and mid-sized, Enterprise Resend Freelancers, Small and mid-sized, Enterprise
  • MCP-ready Omnisend No Resend Yes
  • API Omnisend Yes, API access on all plans 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

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

The trade-offs

Strengths and Limitations

Omnisend

Strengths

  • Email, SMS and web push in one platform
  • Unlimited segmentation and API access on all plans
  • Ready ecommerce integrations for Shopify, BigCommerce and WooCommerce
  • Free plan for up to 250 contacts

Limitations

  • Pricing scales with the number of contacts
  • SMS is charged separately, from $0.007 per message
  • Free and Standard plans cap monthly email sends

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

Plans

Pricing

Omnisend

  • Free $0 / month Up to 250 contacts, 500 emails per month and 500 web push notifications, with all features.
  • Standard From $16 / month Up to 6,000 emails per month for 500 contacts; adds email support. Scales with the number of contacts.
  • Pro From $59 / month Unlimited emails, advanced reporting and no Omnisend branding; SMS from $0.007 per message. Scales with the number of contacts.
  • Custom Not stated Custom pricing for businesses with 150,000+ contacts, with a dedicated account expert.
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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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What users say

Review Scores · opens after launch

Omnisend

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.

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.

Where this comes from

Where this comes from

Omnisend https://www.omnisend.com · checked against the official source on 2026-08-20

Resend https://resend.com · 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.