Postscript
SMS marketing platform purpose-built for Shopify stores.
Alternatives · 2026
Alternatives to Klaviyo
Email and SMS marketing platform focused on ecommerce.
9 hand-curated alternatives from MintedSaaS's directory. See the Klaviyo listing →
Klaviyo is an email and SMS marketing platform designed for ecommerce brands. It combines subscriber segmentation, automation workflows, and performance analytics in a single dashboard. The platform serves mid-market and enterprise retailers who rely on direct-to-consumer channels—particularly those selling physical goods online. Klaviyo's core strength is pre-built ecommerce integrations (Shopify, WooCommerce, BigCommerce) and template libraries tuned for product-focused campaigns.
Buyers typically reach for Klaviyo when they've outgrown a general-purpose email tool and need industry-specific features. They're managing subscriber lists in the tens of thousands, running seasonal campaigns, and expecting detailed revenue attribution. The platform charges per contact and per SMS segment, which works well for high-volume senders but becomes expensive as lists grow. Companies evaluating Klaviyo often ask whether cheaper platforms—or tools with different pricing models—can deliver similar automation depth and ecommerce data syncing without the per-contact fees.
What we offer that competes
Attentive
Conversational SMS and email marketing for consumer brands.
Customer.io
Behavioural messaging across email, SMS, push, and in-app.
HubSpot Marketing Hub
Inbound marketing automation tied to the HubSpot CRM.
Marketo Engage
Adobe's enterprise B2B marketing automation platform.
Brevo
Email, SMS, and CRM tools for SMBs (formerly Sendinblue).
ActiveCampaign
Email marketing automation and lightweight CRM.
What to look for
- Whether the platform charges per contact, per SMS segment, or by flat monthly tier—and how that compounds as your list grows.
- Whether SMS campaigns sync order data from your Shopify store in real time or require manual CSV uploads.
- Whether the platform publishes rate limits and concurrent request limits for the API you'll use to send campaigns.
- Whether you can white-label the sender domain or whether campaigns always display the platform's branding.
- Whether the platform stores SMS and email data indefinitely or deletes records after a set number of months.
- Whether automation workflows can trigger on specific customer behaviors (abandoned cart, post-purchase, product view) or only on manual list segments.
FAQ
What are the best alternatives to Klaviyo?
Postscript and Attentive focus exclusively on SMS and email for ecommerce, matching Klaviyo's vertical focus but with lower per-contact costs. Customer.io and HubSpot Marketing Hub offer broader feature sets and different pricing models—pay-per-contact or contact-tier-based—and suit teams that want one platform for email, SMS, and other channels. Brevo and Mailchimp have large free tiers and work for smaller lists; ActiveCampaign and Marketo serve enterprise buyers needing deep automation and CRM integration.
Are there free alternatives to Klaviyo?
Brevo and Mailchimp both offer free plans with up to 300 contacts and basic email sending. Neither has a free SMS tier. For free SMS, Postscript doesn't offer a free plan but provides pay-as-you-go pricing with no monthly minimum. If you need both email and SMS free, you'll need to use two separate platforms or accept a low-cost paid tier.
Which email marketing platform is best for Shopify stores?
Postscript, Attentive, and Customer.io all have native Shopify apps and real-time order syncing. Klaviyo also integrates deeply with Shopify. The difference is pricing: Postscript and Attentive charge per SMS segment, while Klaviyo charges per contact. Brevo and Mailchimp have Shopify apps too but lack Klaviyo's ecommerce automation templates.
Do these platforms include SMS marketing?
Postscript, Attentive, and Customer.io offer SMS as a core feature. HubSpot Marketing Hub and ActiveCampaign include SMS but treat it as an add-on. Brevo, Mailchimp, Kit, and Marketo do not include SMS. If SMS is required, you're limited to the first three or to adding a separate SMS platform.
What's the difference between per-contact and per-segment SMS pricing?
Klaviyo charges based on the number of contacts in your subscriber list. Postscript and Attentive charge per SMS segment—so if you send one SMS to 50,000 contacts, that's one charge, regardless of list size. Per-segment pricing favors high-volume senders with large lists; per-contact pricing favors brands with smaller, high-engagement lists.
Can I use these platforms for both email and SMS in one dashboard?
Yes. Postscript, Attentive, Customer.io, HubSpot Marketing Hub, and ActiveCampaign all offer unified email and SMS in a single interface. Brevo, Mailchimp, and Kit have email-first dashboards with SMS as an add-on or secondary section. Marketo Engage is primarily email-focused.
How do these platforms integrate with my ecommerce backend?
All nine have pre-built Shopify apps or API documentation for WooCommerce and BigCommerce. Postscript, Attentive, and Customer.io sync order data in real time. HubSpot, ActiveCampaign, and Brevo sync via Zapier or native connectors. Mailchimp and Kit have basic Shopify integration. Marketo typically requires custom API work for ecommerce data sync.
Which platform has the easiest setup for non-technical users?
Postscript and Attentive are built for fast onboarding—both deploy SMS templates in under an hour with no coding required. Mailchimp and Brevo offer visual builders and pre-made flows. Customer.io and HubSpot require more setup but provide automation depth. Marketo and ActiveCampaign need technical expertise or consulting support.