Best for
Best for marketing teams and agencies that want a polished drag-and-drop builder, prebuilt journeys and a large integration catalogue.
- Freelancers
- Small and mid-sized
- Enterprise
Email Marketing Comparison
Campaign Monitor 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 | Campaign Monitor | Twilio SendGrid |
|---|---|---|
| Starting price | Not stated | 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 for up to 500 contacts on a 30-day trial, with a 500 email send limit | 60-day free trial, 100 emails per day and 100 contacts |
| API | Yes, API access with 250+ 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 campaigns and newsletters, with a website builder available as a paid add-on | Email only, split between transactional sending through the Email API and marketing sends through Marketing Campaigns |
| Automation and journeys | Yes, prebuilt customer journeys and drip campaigns, with unlimited automated emails on Essentials and above | Yes, automated recurring emails and time-based drip series, available on the Marketing Campaigns Advanced plan |
| Segmentation and personalisation | Yes, segmentation, with advanced engagement segments on the Premier plan | Yes, dynamic segments over contact lists with custom fields and opt-out preference management |
| Templates and editor | Yes, a drag-and-drop builder with 100+ responsive templates and support for custom-coded templates | 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, link review, and design and spam testing | Yes, inbox rendering previews, spam testing and link validation, plus dedicated IPs, domain authentication and SPF, DKIM and DMARC |
| Ecommerce and CRM data | Yes, CRM and ecommerce connections among the 250+ 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, API access with 250+ integrations | 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, Phone | more entries 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
- Free trial Campaign Monitor Free plan for up to 500 contacts on a 30-day trial, with a 500 email send limit Twilio SendGrid 60-day free trial, 100 emails per day and 100 contacts
- Support Campaign Monitor Email helpdesk, Phone Twilio SendGrid Email helpdesk, Chat, Phone
- AI features Campaign Monitor Yes Twilio SendGrid No
- API Campaign Monitor Yes, API access with 250+ 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 Campaign Monitor Yes, email campaigns and newsletters, with a website builder available as a paid add-on 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
Campaign Monitor
Strengths
- Drag-and-drop builder with 100+ responsive templates and custom-coded templates
- Prebuilt customer journeys and drip campaigns
- AI Writer, AI Email Booster and AI Segment Mapper
- 250+ integrations, including CRM and ecommerce, with an API
Limitations
- Advanced engagement segments are reserved for the Premier plan
- The website builder is a paid add-on
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
Campaign Monitor
- Free $0 / month Up to 500 contacts on a 30-day trial, with a 500 email send limit; no credit card required.
- Lite Not stated Core email tools with up to 2,500 monthly sends.
- Essentials Not stated Unlimited monthly sends and priority support.
- Premier Not stated Unlimited monthly sends, advanced engagement segments and phone support.
- Enterprise Not stated Custom pricing on annual contracts with a dedicated account manager.
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
Campaign Monitor
- 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
Campaign Monitor https://www.campaignmonitor.com · checked against the official source on 2026-08-21
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.