Klaviyo: Email Marketing & SMS vs Sequenzy: Email Marketing, SMS
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 3, 2026.
The short answer
- Klaviyo is detected on 19717× as many Shopify stores as Sequenzy: 256,315 vs 13 as of Nov 3, 2026.
- On the Shopify App Store: Klaviyo 4.7 from 4,973 reviews and Sequenzy 5.0 from 6 reviews.
- Only Sequenzy lists a free plan. Paid plans start at $15/month for Klaviyo and $19/month for Sequenzy.
- Klaviyo lists 45 features Sequenzy’s listing doesn’t mention, including A/B testing, Birthday messages, Browse abandonment.
Head to head
- United States
- United Kingdom
- Australia
- United States
- United Kingdom
- New Zealand
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · AI-assisted, on-brand content
- · Built-in dashboard & reporting
- · Guided onboarding setup
- · One place for forms, emails, and flows
- · Seamless migration to full platform
- · Set up directly in Shopify Admin
SMS
- · Automated two-way conversations
- · Branded SMS links
- · Customizable multi-channel attribution
- · Multi-channel A/B testing
- · Multi-channel segmentation and flows
- · SMS AI for campaign creation
- · 160+ campaign templates
- · Email AI for campaign creation
- · Multi-channel A/B testing
- · Multi-channel segmentation and flows
- · Personalized product recommendations
- · Predictive analytics
Free Forever
- · 2.5K emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful automations
- · Powerful segmentation
15k Emails/month
- · 15K emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful segmentation & automations
- · Shopify customer and order sync
120k Emails/month
- · 120K emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful segmentation & automations
- · Shopify customer and order sync
1.2M Emails/month
- · 1.2M emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful segmentation & automations
- · Shopify customer and order sync
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureGo beyond the basics with the Klaviyo marketing app. New stores get a guided setup — sign-up form, welcome email, and abandoned-checkout flow — without leaving Shopify Admin. Unify data from 350+ integrations and boost marketing performance with campaigns, smart segmentation, and automated workflows from Klaviyo’s AI Agents.
Sequenzy helps merchants run email and SMS marketing with store data. After install, customers, products, orders, checkout activity, and stock events sync into subscriber profiles. Merchants can send newsletters, welcome flows, abandoned cart and checkout recovery, post-purchase follow-ups, win-back campaigns, back-in-stock alerts, and replenishment reminders across email and SMS.
- Use data from Shopify and other apps – web activity, tags, catalog, coupon codes
- Create segments and triggers using complete historical and real-time data
- Use omnichannel templates for Welcome, Back in Stock, Abandon, Price Drop & more
- Get real-time revenue data per automation, campaign, segment, and channel
- Sync customers, orders, products, variants, inventory, and revenue data
- Build welcome, cart, post-purchase, win-back, and replenishment flows
- Target campaigns by purchases, spend, products, tags, and engagement
- Capture back-in-stock requests and notify shoppers when items return
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Klaviyo |  Sequenzy |
|---|---|---|
| Detected stores | 256,315(ahead) | 13 |
| Net store change, 28 days | +293 | +1 |
| Stores added, 28 days | 2,917(ahead) | 1 |
| Big-brand share | 15% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Apparel & Accessories, Food, Beverages & Tobacco, Health & Beauty |
| Top store countries | United States, United Kingdom, Australia | United States, United Kingdom, New Zealand |
Reviews
| Measure | Klaviyo | Sequenzy |
|---|---|---|
| App Store rating | 4.7 ★ | 5.0 ★(ahead) |
| App Store reviews | 4,973(ahead) | 6 |
| New reviews, 28 days | 76 | Not enough data |
| Reviewers a year or more in | 45% | Not enough data |
FAQ
Klaviyo and Sequenzy: common questions
- Which is more popular, Klaviyo or Sequenzy?
- Klaviyo is detected on 19717× as many Shopify stores as Sequenzy: 256,315 vs 13 as of Nov 3, 2026.
- Is Klaviyo or Sequenzy cheaper?
- Only Sequenzy lists a free plan. Paid plans start at $15/month for Klaviyo and $19/month for Sequenzy. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Klaviyo or Sequenzy?
- On the Shopify App Store: Klaviyo 4.7 from 4,973 reviews and Sequenzy 5.0 from 6 reviews.
- What features does each app list that the other doesn’t?
- Klaviyo lists 45 the others don’t mention, such as A/B testing, Birthday messages, Browse abandonment, Bulk messaging. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 3, 2026; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 3, 2026. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.