App Stack Cost

Aisles / Email and SMS / Klaviyo

Klaviyo review and real cost

Email, SMS and push marketing with automated flows built on your Shopify store data.

Easy pick7/8 checks passed#1 of 4 in email and smsBy Klaviyo4.7 from 3,362 App Store reviews

Verdict

Install it if email and SMS drive a big share of your sales and you want deep segmentation on Shopify data. The catch is price: the bill climbs with every active profile and every text, to about $570 a month for a 20,000-profile store.

Install it if

  • Stores that rely on automated flows like abandoned cart, welcome and post-purchase
  • Brands that want email and SMS in one tool with shared segments
  • Growing stores that connect many apps to their marketing

Skip it if

  • Stores past 250 profiles looking for a cheap email tool
  • Merchants who need live support on the free plan
  • Stores with big lists of shoppers who rarely buy, since every active profile adds to the bill

Good

  • Free plan covers 250 active profiles and 500 email sends a month2.
  • Works with Shopify Flow, Recharge, Gorgias and Meta Advertising1.
  • Rated 4.7 from 3,362 reviews on the Shopify App Store1.
  • Annual third-party SOC 2 and ISO 27001 audits, with reports in its Trust Center6.

Not so good

  • Email price rises in steps with active profiles: $70 at 3,000, $375 at 20,000 and $1,380 at 100,0002.
  • Unused SMS plan spend does not roll over to the next month4.
  • Free accounts get email support only for the first 60 days2.
  • No Built for Shopify badge on the listing1.
Klaviyo
Monthly bill by store size
  • 300 orders$105
    Email + SMS
  • 2,000 orders$570
    Email + SMS
  • 10,000 orders$2,275
    Email + SMS

Active profiles set the email price and text volume sets the SMS price; email alone costs $70, $375 and $1,380 at the three sizes2.

Public prices, billed monthly, checked October 8, 2026.

The eight checks

Klaviyo passes 7: easy pick. What each check means.

  • Free to start: passedFree plan for up to 250 active profiles and 500 email sends a month2.
  • Prices public at every size: passedKlaviyo's pricing calculator gives email and US SMS prices at all three store sizes2.
  • Built for Shopify: failedThe listing does not show the Built for Shopify badge1.
  • Rated 4.7 or higher: passedRated 4.7 on the Shopify App Store1.
  • 500+ merchant reviews: passed3,362 reviews on the Shopify App Store1.
  • Works with Shopify Flow: passedShopify Flow is listed under Works with1.
  • You can take your data: passedKlaviyo's public API documents bulk export jobs for profiles and events5.
  • Security report named: passedKlaviyo says it has annual third-party SOC 2 and ISO 27001 audits, with reports in its Trust Center6.

Pricing

PlanPriceIncludesLimits
Free$01,2Email to 250 active profiles, 500 email sends a month, $5 of mobile messages a month, forms, segmentation, A/B testing250 active profiles and 500 email sends a month; email support for the first 60 days only
Email$20/month1,2251-500 active profiles, 5,000 sends a month, product recommendations, send-time optimization, predictive analyticsPrice rises with active profiles: $70 for 3,000, $375 for 20,000, $1,380 for 100,000
SMS$15/month1,4Up to 1,250 SMS/MMS credits with carrier fees included, two-way conversations, branded links, transactional SMSBigger monthly SMS plans for more texts; unused spend does not roll over

The free plan stops at 250 active profiles and 500 email sends a month2. After that, email is priced by active profiles: $20 for up to 500, $70 for 3,000, $375 for 20,000 and $1,380 for 100,000, and Klaviyo moves you up automatically as the list grows2. Texts are extra, billed per message from a monthly SMS plan with carrier fees included; unused spend does not roll over3,4. In Klaviyo's calculator, our three stores pay about $105, $570 and $2,275 a month for email plus US texts2.

Usage charges: Email moves up a price tier automatically as active profiles grow2. Texts are billed per message from a monthly SMS plan, with carrier fees included3.. Free trial: None; free plan instead1.

How we worked out the bill

Store sizePer monthArithmetic
Small, 300 orders$105Email for 3,000 active profiles $70 (up to 30,000 sends) + 2,400 US texts from a toll-free number $35 in Klaviyo's pricing calculator = $1052
Growing, 2,000 orders$570Email for 20,000 active profiles $375 (up to 200,000 sends) + 16,000 US texts $195 = $5702
Large, 10,000 orders$2,275Email for 100,000 active profiles $1,380 (up to 1,000,000 sends) + 80,000 US texts $895 = $2,2752

What it does

Klaviyo is an email and SMS marketing platform that uses your Shopify orders, products and browsing data to send automated flows and campaigns1. New stores get a guided setup with a sign-up form, welcome email and abandoned-checkout flow, and you can add WhatsApp, mobile push and pop-ups from the same customer profile1.

It connects to more than 350 apps, including Shopify Flow, Recharge and Gorgias1. Its AI agent, Composer, builds campaigns and flows, with $5 of usage a month on the free plan2.

  • Guided setup for new stores builds a sign-up form, welcome email and abandoned-checkout flow inside Shopify Admin1.
  • Email, SMS, WhatsApp, mobile push and pop-ups from one customer profile1.
  • AI-built segments and flow triggers using historical and real-time data1.
  • Composer, an AI agent that builds campaigns and flows, with $5 of usage a month on the free plan2.
  • Customer Hub and Customer Agent for service questions1.
  • Public API with bulk export for profiles and events5.

What merchants say

Klaviyo is rated 4.7 from 3,362 reviews, with 88% five-star and 8% one-star ratings1. Merchants praise automated flows, segmentation and analytics, and many say it pays for itself1. Recent low ratings centre on cost: bills that climb with profiles, inactive profiles that are hard to clear, and cancellations some found hard to complete7.

Complaints worth knowing

  • Recent 1- and 2-star reviews say the bill keeps rising with profiles and that inactive profiles are hard to clear7.
  • Several reviewers found cancelling hard or were told they would be billed after uninstalling7.
  • 8% of ratings on the listing are 1 star (263 reviews)1.

What the developer claims

Numbers the developer publishes about itself. We have not verified them.

  • Over 117,000 brands use Klaviyo and Shopify, per Klaviyo's listing1.
  • Trusted by more than 183,000 companies, per Klaviyo's trust page6.

Your data

Klaviyo's public API includes bulk export jobs for profiles and events, so you can take your data with you5. The company says it has annual third-party SOC 2 and ISO 27001 audits and offers the reports in a self-service Trust Center6. It also provides consent management and access and deletion request tools for GDPR and CCPA6. Its trust page does not say where data is stored6.

App languages: English, French, Spanish, German, Portuguese (Brazil), Korean, Italian, Polish, Swedish, Dutch. Works with: Checkout, Customer accounts, Shopify Flow, Shopify Admin, Aftership, Gorgias, Meta Advertising, Recharge, TikTok Advertising, Typeform. On the App Store since: September 20, 2012.

Other email and SMS apps

AppChecks300 orders2,000 orders10,000 orders
Omnisend
6/8 checks passed$95$515$2,034
Postscript
5/8 checks passed$57$197$984
Attentive
4/8 checks passedQuoteQuoteQuote

Sources

  1. Klaviyo: Email Marketing & SMS - Shopify App Store, Shopify App Store. Accessed October 8, 2026.
  2. Klaviyo pricing, Klaviyo. Accessed October 8, 2026.
  3. FAQ: Mobile Messaging per-message pricing (2026), Klaviyo Help Center. Accessed October 8, 2026.
  4. Understand Klaviyo's mobile messaging system, Klaviyo Help Center. Accessed October 8, 2026.
  5. API overview, Klaviyo Developers. Accessed October 8, 2026.
  6. Trust at Klaviyo, Klaviyo. Accessed October 8, 2026.
  7. Klaviyo: Email Marketing & SMS reviews (1-2 stars, newest), Shopify App Store. Accessed October 8, 2026.

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