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
Email Marketing Comparison
Resend vs. Twilio SendGrid
At a glance
At a glance
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 |
Add a tool
Adds a column to the table, from the tools in this category.
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.
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.
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. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.
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. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.
How we check reviews
Before sending, the author has to confirm three things: that they have used the product themselves, that they work neither for the vendor nor for a competitor, and that nobody is paying them for the review. We also ask whether the vendor invited them to write it. That answer is required, either answer is accepted, and it stays with the review.
Every review is read by a person before it appears. An email address is required and is confirmed: we send a link to it, and a review does not reach us until the author opens that link, so a review has a sender who was reachable at least once rather than being anonymous. Where what somebody writes needs backing, we ask them for evidence that they used the product, and a review that does not get it is not published. We publish positive and negative reviews alike, we pay nothing and offer nothing for a review, and we accept none that was bought or incentivised.
What we cannot do is verify a purchase. There is no shop here and no account, so whether the author really used the tool rests on their own declaration, on whatever we ask them for, and on the plausibility of what they write. We say so rather than implying a check that does not exist.
A vendor cannot buy a review, and cannot have one removed or changed because they dislike it. We remove or edit a review only if it breaks our rules or the law, for example a false statement of fact. Paid placement has no effect on which reviews appear or on any score.
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.