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Comparison
Mailchimp

Mailchimp

Cloud ESP
VS
Klaviyo

Klaviyo

Cloud ESP
Ninja Forms

Ninja Forms

For use with

Mailchimp vs Klaviyo

Which CRM should you use with Ninja Forms and WP Smart Consent? Both are fully supported. Here is a side-by-side breakdown to help you decide.

Mailchimp

Mailchimp

Cloud ESP

Mailchimp helps businesses of all sizes grow their audience and revenue through email, automations, and analytics. WP Smart Consent instantly adds opted-in contacts to your Mailchimp audience with the correct tags and merge field values.

  • Beginners and small businesses
  • Free plan: Yes
  • Automation: Yes (Customer Journeys)
  • Ecommerce: Yes (strong)
  • Real-time sync from Ninja Forms via WP Smart Consent
Klaviyo

Klaviyo

Cloud ESP

Klaviyo is the marketing automation platform built for ecommerce, driving revenue through behavioural email and SMS. WP Smart Consent adds consent-gated contacts to your Klaviyo lists with full profile and order context.

  • Ecommerce brands and DTC stores
  • Free plan: Yes
  • Automation: Yes (flows)
  • Ecommerce: Yes (best-in-class)
  • Real-time sync from Ninja Forms via WP Smart Consent

Feature comparison

Feature
Mailchimp
Klaviyo
Pricing Free up to 500 contacts, then paid Free up to 250 contacts, then paid
Best for Beginners and small businesses Ecommerce brands and DTC stores
Free plan Yes Yes
Automation Yes (Customer Journeys) Yes (flows)
Ecommerce focus Yes (strong) Yes (best-in-class)
Hosting Cloud SaaS Cloud SaaS
API REST API v3 REST API v2024
Support Email / chat (paid plans) Email / chat (paid)
WP Smart Consent sync Real-time, no cron Real-time, no cron
Custom field mapping Yes Yes
GDPR consent stored Locally in WordPress Locally in WordPress

Both integrations are fully supported by WP Smart Consent. The right choice depends on your existing stack, budget, and automation needs.

Common questions

Can I switch CRMs later?

Yes. WP Smart Consent stores consent locally first. You can change your destination CRM in the settings at any time — historical opt-ins stay safe.

Can I use both at the same time?

WP Smart Consent currently sends to one destination per source. If you need multi-destination routing, you can chain via a middleware like WP Fusion.

Does it work with Ninja Forms?

Yes. Both Mailchimp and Klaviyo are fully supported as destinations for Ninja Forms opt-ins through WP Smart Consent.

More comparisons for Ninja Forms

Ready to connect Ninja Forms to your CRM?

WP Smart Consent supports both Mailchimp and Klaviyo , plus 17 more destinations.

Use Mailchimp Get WP Smart Consent Use Klaviyo

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