Security, offline and access rules that differ between Mailchimp and Klaviyo. Rows where both tools are the same (3) are left out; the full side-by-side is on each tool’s page: Mailchimp, Klaviyo.
Set up single sign-on in Klaviyo on Paid plans before you invite the team, so accounts are created through your identity provider rather than by hand.
Checked September 19, 2026 against each vendor’s own trust center, help docs and app pages. Hover or tap “source” to see the exact wording we relied on. “Not published” means we could not find the vendor saying it on its own site; it doesn’t mean the feature is missing. Plan names are the lowest plan the vendor says includes the feature. Security · Offline · Remote vs office · Download the data
MARKETING AUTOMATION · MIGRATION GUIDE
Switching from Mailchimp to Klaviyo
Mailchimp customers moving to Klaviyo can lean on Klaviyo’s native Mailchimp integration to pull in contacts and engagement history automatically, though campaigns and automations still need to be rebuilt by hand.
Quick verdict: Worth it if you’re an ecommerce brand that has outgrown Mailchimp’s automation and segmentation limits and wants deeper Shopify/BigCommerce integration – not worth it if you’re a simple newsletter sender who doesn’t need Klaviyo’s granular behavioral targeting.
Why teams switch from Mailchimp to Klaviyo
Deeper ecommerce segmentation
Klaviyo’s segmentation is built around real-time purchase and browse behavior pulled straight from your store, which lets you target by predicted lifetime value, product category, or specific SKUs in ways Mailchimp’s audience tags can’t match.
More powerful automation flows
Klaviyo’s flow builder supports branching logic, multiple conditional splits, and cross-channel (email plus SMS) sequencing in a single automation, versus the more linear automation builder in Mailchimp’s lower tiers.
Built for high-volume senders
Once contact counts climb into the tens of thousands, Klaviyo’s send infrastructure and deliverability tooling are generally viewed as stronger than Mailchimp’s for revenue-driving ecommerce email programs.
Estimate the real hidden cost of moving from Mailchimp to Klaviyo, not just the subscription price.
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Estimated migration time
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Data friction rating
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Total hidden switching cost
Data mapping & cleaning labor—
Migration / cleaning tooling fees—
Team retraining overhead—
Switching friction buffer (10%)—
Assumes a blended $45/hr internal labor rate, using Klaviyo’s native importer. Adjust the sliders to match your team.
How to migrate your data
Klaviyo’s built-in Mailchimp integration handles the bulk of the contact transfer, but plan on manual work for anything creative or automated.
Step
What happens
1Connect your Mailchimp API key
In Klaviyo, add the Mailchimp integration and authenticate with your Mailchimp API key to start the sync.
2Sync historical contacts and campaign data
Klaviyo pulls in your existing Mailchimp audiences (as lists), subscriber status, and roughly the last 90 days of campaign engagement data during the initial sync.
3Wait for ongoing sync cycles
After the initial import, Klaviyo syncs existing audiences approximately every 30 minutes and picks up brand-new audiences or campaigns roughly every 6 hours while the integration stays connected.
4Rebuild tags as segments or lists
Because Mailchimp tags don’t come across through the native sync, export them as a CSV and re-import them into Klaviyo, then convert them into lists or segments.
5Recreate templates and automations
Export your Mailchimp email HTML and rebuild it as Klaviyo templates, and manually recreate any Mailchimp automations as Klaviyo flows since neither transfers automatically.
6Redirect signup forms and disconnect Mailchimp
Point website and landing-page signup forms at Klaviyo, run both tools in parallel for a billing cycle to confirm parity, then remove the Mailchimp integration.
What Klaviyo’s importer doesn’t handle: Tags, email templates, and automations/flows do not transfer automatically in either direction – only contact records, list membership, and roughly 90 days of campaign engagement history sync natively, so budget real time for manually rebuilding your creative and automation logic.
Pricing during the transition
Both tools offer a free entry tier, but Klaviyo’s active-profile-based pricing costs more than Mailchimp Essentials but less than Mailchimp Standard at 1,000 contacts.
Plan
Mailchimp
Klaviyo
Free plan
$0 (up to 250 contacts, Mailchimp)
$0 (up to 250 profiles, 500 emails/month, Klaviyo)
Entry paid tier (500 contacts)
Essentials: $13/month (up to 500 contacts)
Email: $20/month (251 to 500 active profiles)
Mid tier (1,000 contacts)
Standard: $45/month (501 to 1,500 contacts; Essentials is $26.50/month at this size)
Email: $30/month (501 to 1,000 active profiles)
Both vendors price by active contact/profile count and raise rates as your list grows, so compare quotes at your actual list size rather than the entry-level numbers above; figures are as of September 2026 and both vendors adjust tiers periodically.
Feature-parity checklist
The two platforms overlap heavily on core email marketing but diverge on automation depth and ecommerce-specific data.
Feature
Mailchimp
Klaviyo equivalent
Visual automation/flow builder
Linear automations, more steps at higher tiers
Branching flows with conditional splits, built for ecommerce triggers
Ecommerce platform integrations
Solid Shopify/WooCommerce integrations, less granular data
Deep native Shopify/BigCommerce sync with real-time purchase and browse events
SMS marketing
Available as an add-on in some regions
Native SMS/MMS/WhatsApp on a shared credit system
Landing pages
Built-in landing page builder
Available but less mature than Mailchimp’s
Reporting on revenue attribution
Basic ecommerce reporting
Detailed revenue-per-flow and predictive analytics (CLV, churn risk)
Will my Mailchimp automations transfer to Klaviyo automatically?
No – Klaviyo’s native integration only syncs contacts and roughly 90 days of campaign engagement data; automations must be manually rebuilt as Klaviyo flows.
Do my Mailchimp tags carry over?
Not through the native sync. You’ll need to export tags as a CSV from Mailchimp and re-import them into Klaviyo as list or segment memberships.
How long does the Mailchimp-to-Klaviyo sync take?
The initial historical sync happens shortly after connecting, and ongoing updates land roughly every 30 minutes for existing audiences and every 6 hours for new ones, as of Klaviyo’s current documentation.
Can I run Mailchimp and Klaviyo at the same time during migration?
Yes, and it’s the safer approach – most teams keep both connected for a billing cycle to verify data parity before cancelling Mailchimp.
Is Klaviyo more expensive than Mailchimp?
At the same contact volume, Klaviyo’s email plan typically costs more than Mailchimp’s equivalent tier, though Klaviyo’s SMS/WhatsApp is billed separately via credits rather than bundled.
Canonical data for the tools on this page
Every pricing fact, rating, AI billing model and switching guide we hold on each tool, on one page, with the date each figure was last verified.
Prices on this page were recorded from each vendor’s own pricing page on the date shown at the top of the page. Vendors change pricing often — check the live source before you buy.
Verified prices costed for your team size, a check against your must-have requirements, the questions to settle before you sign, and a source for every figure. Print it, or paste it into an email to whoever approves the spend.
Built for the leader who owns the selection, answers for the spend, drives the rollout, and lives with the results. HelpCompare covers the whole decision, not just the first step.
Engineer by training, operator by experience, marketer by choice. Bill spent eight and a half years as an engineer at HP, was COO of Auctiva (the number one third-party selling platform on eBay, past 200,000 users) and ran Google’s $70M/year search syndication partnership at Alot.com. Then he spent 13 years building his own web properties with his own money at stake. He has bought, trialled, integrated and cancelled more SaaS tools than he can count, and started HelpCompare because the real cost of switching tools is the part nobody covers.
“I’ve sat on both sides of the table: the agency recommending the tool and the client paying for it.”
Researched and fact-checked by the HelpCompare team. Pricing on this page was last verified on September 16, 2026. No paid sponsorships, no affiliate commissions.
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