Klaviyo: Email Marketing & SMS vs Stream: Email & SMS Marketing
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026.
The short answer
- Klaviyo is detected on 2345× as many Shopify stores as Stream: 276,655 vs 118 as of Nov 9, 2026.
- On the Shopify App Store: Klaviyo 4.7 from 3,434 reviews and Stream 5.0 from 1 reviews.
- Klaviyo lists 68 features Stream’s listing doesn’t mention, including A/B testing, Abandoned cart, AI generation.
Head to head
- United States
- United Kingdom
- Australia
- Hong Kong
- United States
- China
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 install
basic
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.
Stream provides a complete set of marketing operation solutions for independent website sellers. Sellers do not need to create strategies, nor conduct AB tests. One-click open our operation&marketing strategies. The Stream Strategy Center help sellers collect full user info. (generally 10%-30% of website visitors) and conduct targeted recalls for customers who have abandoned orders, purchases and browsing.
- 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
- Stream made personalized strategies, which collect users' emails & phone.
- Accurately matching of people and goods is realized. Users' shopping easily.
- Users' needs are ever-changing, Stream implements vary by their different needs.
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 |  Stream |
|---|---|---|
| Detected stores | 276,655(ahead) | 118 |
| Net store change, 28 days | +505 | +11 |
| Stores added, 28 days | 2,738(ahead) | 11 |
| Big-brand share | 15% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Home & Garden, Apparel & Accessories, Health & Beauty |
| Top store countries | United States, United Kingdom, Australia | Hong Kong, United States, China |
Reviews
| Measure | Klaviyo | Stream |
|---|---|---|
| App Store rating | 4.7 ★ | 5.0 ★(ahead) |
| App Store reviews | 3,434(ahead) | 1 |
| New reviews, 28 days | 64(ahead) | 0 |
| Reviewers a year or more in | 43% | Not enough data |
FAQ
Klaviyo and Stream: common questions
- Which is more popular, Klaviyo or Stream?
- Klaviyo is detected on 2345× as many Shopify stores as Stream: 276,655 vs 118 as of Nov 9, 2026.
- Which has better reviews, Klaviyo or Stream?
- On the Shopify App Store: Klaviyo 4.7 from 3,434 reviews and Stream 5.0 from 1 reviews.
- What features does each app list that the other doesn’t?
- Klaviyo lists 68 the others don’t mention, such as A/B testing, Abandoned cart, AI generation, Analytics. Stream lists 21 the others don’t mention, such as Analytics, Automations, Banners, Campaigns. 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 9, 2026; estimated figures are labeled.
Keep comparing
More matchups
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 9, 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.