True cost comparison — not just what the pricing page says
Quick Verdict
Klaviyo saves you 5%
Best for Klaviyo
E-commerce email and SMS marketing platform. Free for 250 contacts, then contact-based pricing that
Best for Mailchimp
Email marketing platform with automation. Free for 500 contacts, then contact-based pricing creates
E-commerce email and SMS marketing platform. Free for 250 contacts, then contact...
Advertised
$0
/month
True Cost
$205
/month (typical)
Steep Contact-Based Scaling
Free for 250 contacts. Then: 1K = $30/mo, 5K = $100/mo, 10K = $150/mo, 25K = $400/mo, 50K = $720/mo....
SMS Credits Charged Separately
SMS marketing requires separate credit purchases. US SMS: $0.01-$0.015/message. 10K SMS/mo = $100-15...
Email Send Limits Per Tier
Email sends are capped at 10x your contact limit on most plans. Exceeding requires upgrading to a hi...
Email marketing platform with automation. Free for 500 contacts, then contact-ba...
Advertised
$0
/month
True Cost
$113
/month (typical)
Unsubscribed Contacts Count
Mailchimp counts unsubscribed and non-subscribed contacts toward your billing limit. A list of 10K w...
Steep Contact Tier Scaling
Pricing jumps dramatically: 500 contacts = $13.99/mo, 2,500 = $45/mo, 10K = $100/mo, 50K = $350/mo. ...
Pay-As-You-Go Email Credits
Over-limit sends cost extra as email credits. Standard plan allows 12x your contact limit per month....
Advanced Automation Paywall
Free and Essentials include only basic automations. Customer journeys with branching, A/B testing, a...
Klaviyo advertises $0/mo. Mailchimp advertises $0/mo.
Klaviyo has 3 documented hidden fees. Mailchimp has 4.
Klaviyo confidence: 78%. Mailchimp confidence: 80%.
| Metric | Klaviyo | Mailchimp | Winner |
|---|---|---|---|
| Advertised Price | $0/mo | $0/mo | Klaviyo |
| True Monthly Cost | $205/mo | $113/mo | Mailchimp |
| Hidden Fee Total | +$205/mo | +$113/mo | Mailchimp |
| # Hidden Fees | 3 | 4 | Klaviyo |
| Confidence Score | 78% | 80% | Mailchimp |
| Pricing Tiers | 3 | 4 | — |
| Affiliate Program | None | No public affiliate program (discontinued 2022) | — |
Klaviyo advertises $0/mo and Mailchimp advertises $0/mo. However, when you include hidden fees, Klaviyo has 3 documented hidden fees adding +$205/mo, while Mailchimp has 4 hidden fees adding +$113/mo. Based on true cost, Klaviyo is typically 5% cheaper.
Klaviyo has 3 documented hidden fees: Steep Contact-Based Scaling, SMS Credits Charged Separately, Email Send Limits Per Tier. These add approximately +$205/mo on top of the $0/mo advertised price.
Mailchimp has 4 documented hidden fees: Unsubscribed Contacts Count, Steep Contact Tier Scaling, Pay-As-You-Go Email Credits, Advanced Automation Paywall. These add approximately +$113/mo on top of the $0/mo advertised price.
Choose Klaviyo if: E-commerce email and SMS marketing platform. Free for 250 contacts, then contact-based pricing that . Choose Mailchimp if: Email marketing platform with automation. Free for 500 contacts, then contact-based pricing creates . The right choice depends on your team size, usage volume, and which features you need most.
This comparison is based on manual research of official pricing pages, terms of service, and user reports. Klaviyo data has a 78% confidence score and Mailchimp has 80%. Prices were last verified in April 2026. For the most accurate estimate, enter your specific usage in our calculator.
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