Omnisend vs Mailchimp

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed October 2026

Omnisend

Email & SMS marketing for ecommerce

Freemium

80% verification coverage

Mailchimp

Intuit Mailchimp

Email & SMS Marketing Platform

Freemium

80% verification coverage

Trust & Reliability

Omnisend

Uptime:100.00%Status page

Users:100K-1M

Customers (per vendor):Salomon Japan, Creality, INGLOT Canada +7

GDPR

Mailchimp

Users:10M-50M

Customers (per vendor):Riot Fest, Stash Hotel Rewards, HC Brands +1

GDPR

Overall Winner: Mailchimp

6.8/10 vs Omnisend at 5.8/10

Leads in:

Integration

Support

Ease of Use

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Omnisend

5.8

avg score

Mailchimp

6.8

avg score

Mailchimp leads overall — particularly in Support and Integration.

Based on 6 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Mailchimp

6.8 / 10

Omnisend

Best For

Ecommerce brands looking for email and SMS marketing automation

Growing and medium-sized businesses focused on email marketing

High-volume senders needing advanced SMS capabilities

Businesses migrating from Klaviyo or Mailchimp seeking cost savings

Mailchimp

Best For

Small businesses managing early growth with core marketing features

E-commerce businesses looking to increase sales with personalized messages

Mid-market companies needing advanced automations and optimization tools

Non-profits and charities seeking discounts on marketing plans

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Omnisend is best for

💻Coding & Dev7.0📊Data & Analytics6.7🤖Automation & Agents6.7

Mailchimp is best for

🤖Automation & Agents6.7📊Data & Analytics5.9🎧Customer Support5.0

Filter by your use case:

Limitations

Omnisend

Cons

SMS/MMS is available for US & Canada recipients only for MMS, while SMS is global
Free plan is limited to 500 emails/month and 250 contacts
Standard plan is limited to 6,000 emails/month and 500 contacts
Account expert support is only free for customers paying at least $400 per month

Mailchimp

Cons

SMS marketing is an add-on to paid plans and requires application and approval
Certain AI features and functionality are available in English only
Unused SMS credits expire each month and do not roll over.
Email support is only available for the first 30 days on the Free plan
Phone support is only available in English

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Omnisend

5.8

/ 10

Mailchimp

6.8

/ 10

Clear winner

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Omnisend

6.0

Mailchimp

7.0▲ +1.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Omnisend

6.0

Mailchimp

7.0▲ +1.0

Support

How strong is the documentation, customer support, community, and learning resources?

Omnisend

6.0

Mailchimp

8.0▲ +2.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Omnisend

7.0

Mailchimp

9.0▲ +2.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Omnisend

5.0

Mailchimp

5.0

Performance

Calculated

Latency + throughput speed

Omnisend

5.0

Mailchimp

5.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Omnisend

—

Mailchimp

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Omnisend

Task

Mailchimp

9.0

Campaign Creation

9.0

Audience Targeting

8.0

Performance Analytics

8.0

3.0

Content Calendar

6.0

8.0

Multi Channel Management

8.0

6.0

Lead Scoring

5.0

6.0

Attribution Tracking

6.0

8.0

Email Drafting

8.0

9.0

Follow Up Sequences

9.0

Newsletter Creation

9.0

Personalization

8.0

9.0

Subject Line Optimization

8.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Omnisend and Mailchimp?

Omnisend — "Email & SMS marketing for ecommerce". Mailchimp — "Email & SMS Marketing Platform". The Features section on this page compares them side by side.

Who is Omnisend best for compared with Mailchimp?

Omnisend is best for Ecommerce brands looking for email and SMS marketing automation; and for Growing and medium-sized businesses focused on email marketing. Mailchimp is best for Small businesses managing early growth with core marketing features; and for E-commerce businesses looking to increase sales with personalized messages.

How does the pricing of Omnisend compare with Mailchimp?

Omnisend is freemium, includes a free plan. Mailchimp is freemium, includes a free plan, paid plans start at $13.1/month, offers a free trial. Always verify current pricing with the vendor.

Does Omnisend or Mailchimp have a free plan?

Omnisend has a free plan. Mailchimp has a free plan and offers a free trial. Always verify current pricing with the vendor.

Do Omnisend and Mailchimp offer an API?

Omnisend offers a public API. Mailchimp offers a public API.

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