Best for
Best for teams that want an email marketing platform with designed templates, automation and AI writing tools, and a Marketing API to connect their own data.
- Freelancers
- Small and mid-sized
- Enterprise
Email Marketing Comparison
Mailchimp 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 | Mailchimp | Twilio SendGrid |
|---|---|---|
| Starting price | lower value From $13 / month Essentials plan; the price scales with the number of contacts. | 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 plan available for up to 500 contacts | 60-day free trial, 100 emails per day and 100 contacts |
| API | Yes, a Marketing API for audiences, automations and data sync, plus more than 300 integrations | 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 | Yes, email newsletters and campaigns, with A/B testing and scheduling on paid plans | Email only, split between transactional sending through the Email API and marketing sends through Marketing Campaigns |
| Automation and journeys | Yes, automation flows, up to 3 steps on Essentials and up to 200 flows on Standard and Premium | Yes, automated recurring emails and time-based drip series, available on the Marketing Campaigns Advanced plan |
| Segmentation and personalisation | Yes, segmentation and dynamic content, with predictive segmentation on Premium | Yes, dynamic segments over contact lists with custom fields and opt-out preference management |
| Templates and editor | Yes, professionally designed templates and an editor, with custom-coded templates on Premium | Yes, a drag-and-drop design editor and a custom HTML editor, with a library of free responsive templates |
| Deliverability and testing | Yes, A/B testing and scheduling on paid plans | Yes, inbox rendering previews, spam testing and link validation, plus dedicated IPs, domain authentication and SPF, DKIM and DMARC |
| Ecommerce and CRM data | Yes, audience data with tags and more than 300 integrations | Contact lists with custom fields, and signup forms that add subscribers to those lists in real time through the API |
| Integrations and API | Yes, a Marketing API for audiences, automations and data sync | Yes, REST API and SMTP relay, SDKs for seven languages and event webhooks for real-time delivery events |
| AI features | stated Yes | No |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Email helpdesk, Chat, Phone | Email helpdesk, Chat, Phone |
| Onboarding | Not stated | 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 Mailchimp From $13 / month Twilio SendGrid From $15 / month
- Free trial Mailchimp Free plan available for up to 500 contacts Twilio SendGrid 60-day free trial, 100 emails per day and 100 contacts
- AI features Mailchimp Yes Twilio SendGrid No
- API Mailchimp Yes, a Marketing API for audiences, automations and data sync, plus more than 300 integrations Twilio SendGrid Yes, REST API and SMTP relay with SDKs for Python, Ruby, Go, PHP, Java, C# and JavaScript, plus event webhooks
- Campaign types Mailchimp Yes, email newsletters and campaigns, with A/B testing and scheduling on paid plans Twilio SendGrid Email only, split between transactional sending through the Email API and marketing sends through Marketing Campaigns
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Mailchimp
Strengths
- Generative AI writing and design tools on the Standard and Premium plans
- Marketing API with webhooks and OAuth 2 for audiences and automations
- More than 300 integrations
- Free plan for up to 500 contacts
Limitations
- Prices scale with the number of contacts
- Predictive segmentation and custom-coded templates are reserved for the top plans
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
Mailchimp
- Free $0 / month Up to 500 monthly sends and 250 contacts, with a limited set of templates.
- Essentials From $13 / month Designed templates, A/B testing, scheduling and up to 3 automation flow steps. Scales with contacts.
- Standard From $20 / month Adds AI writing and design tools and up to 200 automation flows. Scales with contacts.
- Premium From $350 / month Adds unlimited contacts and seats, predictive segmentation, phone and priority support and custom-coded templates.
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
Mailchimp
- 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
Mailchimp https://mailchimp.com · checked against the official source on 2026-08-19
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.