Klaviyo SMS for Shopify: Pricing, Setup and What It Earns

Klaviyo sends SMS and MMS from the same platform as your email, using the same Shopify data. That means one customer profile, one set of flows, and texts triggered by what shoppers actually do. This guide covers what Klaviyo charges for SMS, how to set it up, which flows to build first, and how it compares with other Shopify SMS apps. The results come from a program we built: SMS earned Lifelines $10.3K in its first two months.

Can Klaviyo do SMS?

Yes. Klaviyo sends SMS and MMS from the same platform as your email, with one profile per customer and shared Shopify data. You can run SMS campaigns, SMS flows and two-way conversations, and combine email and SMS in a single flow. Klaviyo supports SMS in 19 countries, including the US, Canada, the UK and Australia.

The sending number depends on the country. In the US and Canada, Klaviyo uses toll-free numbers, short codes and vanity short codes. The UK and Ireland use branded sender IDs and long codes, and most of Europe and Australia use branded sender IDs, per Klaviyo's announcement of its 19-country coverage.

MMS (texts with images or GIFs) works in the US from toll-free numbers and short codes, and in Canada from toll-free numbers only. It doesn't work from branded sender IDs.

Does Klaviyo connect to Shopify?

Yes. Install the Klaviyo app from the Shopify App Store, connect your Klaviyo account, and turn on onsite tracking. Klaviyo then syncs your customers, products and orders, and records browsing and checkout events. SMS flows use those same events, so a text can trigger when someone abandons a cart.

The full setup, step by step, is in our guide to Klaviyo email marketing for Shopify.

How much does Klaviyo charge for SMS messages?

Klaviyo charges in credits. Free and Email plans include 150 SMS/MMS credits a month, and carrier fees are included. A US SMS uses 1 credit and a US MMS uses 3. The Email + SMS plan starts at $35 a month for 251 to 500 profiles, with 1,250 credits included.

Credits per message by country, from Klaviyo's pricing page:

Monthly credit packs, as reported by third-party breakdowns of Klaviyo's plan calculator:

Confirm your exact price in Klaviyo's calculator, since packs and rates change. One credit covers one SMS segment of up to 160 characters, so longer texts use more.

Is Klaviyo SMS too expensive?

It can be, if you text too often or send internationally without checking credit rates. A US SMS uses 1 credit, but a UK text uses 5 and an MMS 3. Klaviyo SMS pays for itself when you keep texts to high-intent moments, such as cart recovery and restocks, rather than copying every email to SMS.

Cost complaints are common. Three habits keep costs in line:

• Text less often than you email. Save SMS for moments that justify an interruption.
• Use MMS only when the image earns it. It costs 3 times as much in the US.
• Segment by country, so international subscribers get fewer, better texts.

For a very small store, Shopify Messaging's per-message pricing may be cheaper. See the comparison below.

How do you set up Klaviyo SMS on Shopify?

Turn on SMS in Klaviyo, request a sending number, and submit your business details for verification. In the US and Canada, the toll-free number must be verified before you send, and your website must be live. While you wait, build your sign-up forms and SMS flows, then launch soon after approval.

1. Connect Klaviyo to Shopify, if you haven't already.
2. Turn on SMS in Klaviyo's settings and choose your sending countries.
3. Request a toll-free number for the US and Canada, with your business and contact details. Klaviyo submits it for verification.
4. Build while you wait. Klaviyo's toll-free verification guide says you can set up flows and forms during verification but must not turn them live. Its glossary puts verification at 7 to 10 days.
5. Collect consent. Add an SMS-only sign-up form and a phone field to your main form, with clear consent language.
6. Set quiet hours, so texts don't go out at night in the recipient's time zone.
7. Launch soon after verification. Klaviyo recommends sending within a month, because carriers expect verified numbers to be used consistently.

Not every business qualifies. Businesses in Klaviyo's prohibited content categories can't send SMS through it.

Which Klaviyo SMS flows should Shopify brands build first?

Start with three: an SMS welcome for new subscribers, abandoned cart and checkout texts, and back-in-stock alerts. Each reaches shoppers at a moment of clear intent. For Lifelines, the SMS welcome flow alone earned $11.4K in September 2026, and cart, checkout and back-in-stock flows run on both email and SMS.

• SMS welcome. A short text right after sign-up, with any promised offer. It's the first message most subscribers see.
• Abandoned cart and checkout. Pair the text with your email flow rather than duplicating it. A single text with a cart link is usually enough.
• Back in stock. Restock alerts are naturally urgent, which suits SMS. Lifelines' two strongest campaigns were back-in-stock drops.

Then add campaigns for launches and limited drops. Lifelines' Labor Day flight combined three emails with one SMS and earned $22.6K.

Source: Lifelines monthly Klaviyo reports and Retention Log, 2026.

How do you grow an SMS list on Shopify?

Ask for the phone number where it's easy to give. Add an SMS-only sign-up form, and add a phone field to your existing email form. Lifelines built its SMS list from zero to more than 1,300 subscribers in two months this way, and its SMS-only form converts at more than 10%.

That SMS form converts at about three to four times the rate of Lifelines' email forms. In September 2026 alone, the SMS list grew by 1,348 net subscribers.

Make consent clear on every form: what the texts are, how often they come, and how to stop them. Klaviyo also offers double opt-in, which helps filter out mistyped numbers and bots.

Source: Lifelines monthly Klaviyo reports and Retention Program Performance Review, 2026.

How does SMS perform compared with email?

SMS gets far more clicks per message, so it suits fewer, more urgent sends. Lifelines' SMS campaigns reached click rates of 8 to 23%, against about 2 to 4% for its email. SMS earned $10.3K in its first two months, a channel that didn't exist before we launched it.

Email usually still drives more total revenue, because email lists tend to be much larger than SMS lists. The two work best together: email for stories and catalogs, SMS for moments that can't wait. In September 2026, email and SMS together drove 39% of Lifelines' total site revenue.

Source: Lifelines monthly Klaviyo reports, June to September 2026.

What's the best SMS app for Shopify?

It depends on what you already use. If Klaviyo runs your email, keep SMS in Klaviyo, so both channels share one profile and one set of flows. Postscript suits SMS-first brands selling mostly in the US. Attentive suits large brands that want a managed, enterprise platform. Shopify Messaging suits small stores that want texting inside the Shopify admin.

Sources: Klaviyo's pricing page; Shopify Messaging's App Store listing and published rates; Postscript and Attentive pricing as described in 2026 comparison reviews. Checked November 2026. We build Klaviyo programs for a living, so weigh our view with that in mind.

Can you move SMS subscribers to Klaviyo from another app?

Yes, if you move their consent with them. Import subscribers with their original opt-in dates, carry every opt-out across, and if your sending number changes, send one short text from the new number. Vertigo Vinyl moved about 16,000 SMS subscribers to a new Klaviyo number in one day, and 93% of the first texts were delivered.

After the change, 0.9% of Vertigo Vinyl's subscribers unsubscribed. The full process is in our Mailchimp to Klaviyo migration guide.

Source: Solo Media Group account team, October 2026 migration.

Who are the best Shopify agencies for Klaviyo SMS?

The best Klaviyo SMS agencies can show published SMS results with sources, compliant launches, and independent client ratings. On those three criteria, we rank Solo Media Group first. The evidence is below for you to check against any agency you're considering.

How we judge, and how Solo Media Group scores:

#1: Solo Media Group. Builds and runs Klaviyo email and SMS programs for Shopify brands, from launch and compliance to flows, list growth and testing. See our Klaviyo email and SMS marketing service.

To compare other agencies, Klaviyo lists its partners in its partner directory. Ask each one for the same evidence: SMS results with a source, a consent plan, and reviews on a platform the agency doesn't control.

Other Klaviyo agencies to compare (alphabetical, not ranked):

Sources, checked November 2026: Klaviyo's partner directory for Swanky; Clutch's Klaviyo experts list for InboxArmy and its Flowium profile; BlueTuskr's Klaviyo page. "Self-reported" means the status comes from the agency itself, not Klaviyo's directory. "Not verified" means we couldn't confirm it from an independent source.

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