Mailchimp vs Omnisend
Structural evidence first. Use the calculators when you want a workload-specific cost or migration decision.
Mailchimp
PartialPlan + maximum contact tier; subscribed, unsubscribed and non-subscribed contacts can count toward the contact total.
Open full evidence →Omnisend
PartialBillable contact tier; Standard email allowance = contact count x12; Pro has unlimited emails. SMS rules changed May 4, 2026.
Open full evidence →Starting-price structure
Mailchimp
Essentials — $17.00/mo
Free — $0.00/mo
Premium — $500.00/mo
Standard — $25.00/mo
Omnisend
Free — $0.00/mo
Pro — $59.00/mo
Standard — $16.00/mo
Best verified feature state available by provider
Mailchimp
Marketing automation: included Premium
Landing pages: included Essentials
SMS marketing: add_on Essentials
Transactional email: add_on Premium
Ecommerce automation: unverified Essentials
Digital products / paid content: unverified Essentials
Omnisend
Marketing automation: included Free
Landing pages: unverified Free
SMS marketing: add_on Pro
Transactional email: included Free
Ecommerce automation: included Free
Digital products / paid content: unverified Free
Provider-level summaries do not prove the cheapest plan supports a capability. Use the migration engine for plan-specific screening.