Shopify app comparison · updated Aug 25, 2026
Klaviyovs
Attentive
Compare Klaviyo and Attentive for Shopify email marketing using current ratings, review activity, pricing, features, and OngoingAI-observed adoption.
Klaviyo
Klaviyo: Email Marketing & SMS
Build email marketing, SMS, and WhatsApp campaigns powered by AI to grow ecommerce sales.
- Rating
- 4.70
- Reviews
- 3,007
- Review growth · 30d
- +54 · +1.8%
- Pricing
- Free to install
- Years on Shopify
- 14
- Stores observed
- 34,411
Attentive
Attentive: AI‑led Email &SMS
AI-powered mobile email and SMS marketing platform enabling personalization at scale.
- Rating
- 4.80
- Reviews
- 106
- Review growth · 30d
- +0 · +0.0%
- Pricing
- Free to install
- Years on Shopify
- 6
- Stores observed
- 2,046
Our read
- Ratings
- Attentive higher (4.80 vs 4.70)
- Review growth
- Klaviyo faster (+1.8% vs +0.0%)
- Review depth
- Klaviyo 28.1× more reviews
- Adoption
- Klaviyo larger (34,411 vs 2,046)
OngoingAI's data favors Klaviyo on observed Shopify adoption (34,411 vs 2,046 stores), backed by a larger review base.
Head-to-head
The signals, side by side.
Each row reads straight from the live App Store listing and OngoingAI’s census. The Difference column states the gap — not a buyer recommendation.
| Dimension | Klaviyo | Attentive | Difference |
|---|---|---|---|
| Rating | 4.70 | 4.80 | Attentive +0.10 |
| Reviews | 3,007 | 106 | Klaviyo 28.1× |
| Review growth · 30d | +54 · +1.8% | +0 · +0.0% | Klaviyo faster |
| Listed pricing | Free to install | Free to install | Not directly comparable |
| Years on Shopify | 14 | 6 | Klaviyo +8y |
| Stores observed | 34,411 | 2,046 | Klaviyo leads |
Which fits your requirements?
Choose by what you actually need.
Choose Klaviyo if…
- You need email campaigns
- You need push notifications
- You need newsletters
- Recent review-growth signals matter to you
Choose Attentive if…
- You need segmentation
- You need analytics
- You need a/b testing
- A higher App Store rating is a priority
Tied to observable requirements only — listed capabilities, ratings, review growth, adoption and price. It doesn’t assert usability or support quality.
Feature differences
35% of listed capabilities overlap.
These apps cover largely the same ground. The decision material is what each lists that the other doesn’t.
Klaviyo only
26
- Email campaigns
- Push notifications
- Newsletters
- Forms
- Discounts
- Promotions
- Upsell emails
- Cross-sell emails
- Exit intent
- Welcome emails
- Follow-up emails
- Price drop emails
- Win-back emails
- Drip campaigns
- Subscriptions
- Product reviews
- Editor tool
- Templates
- Localization
- Custom code
- Custom fonts
- Bulk editing
- Import and export
- Email domains
Attentive only
11
- Segmentation
- Analytics
- A/B testing
- APIs and webhooks
- SMS marketing
- Personalized messages
- Real-time analytics
- ROI tracking
- Subscription renewals
- Welcome messages
- Win-back campaigns
Show 14 shared capabilities
- Email marketing
- SMS campaigns
- Pop-ups
- Cart emails
- Checkout emails
- Abandoned cart
- Browse abandonment
- Back-in-stock emails
- Product recommendations
- Custom campaigns
- AI generation
- Email capture list
- SMS capture list
- Automations
Observed adoption
Who actually runs each, on real stores.
The stores OngoingAI’s weekly census observes running each app, and the platform each skews toward — observed presence, not vendor-reported install totals.
Klaviyo
34,411
stores observed
Skews Shopify · 89%
Attentive
2,046
stores observed
Skews Shopify · 93%
Scope
What this comparison measures.
What it measures
Shopify App Store ratings, review counts and 30-day review growth, listed pricing and capabilities, category data, and OngoingAI-observed storefront adoption for Klaviyo and Attentive.
What it doesn’t
Hands-on usability, customer-support quality, deliverability, merchant sentiment from review text, or revenue impact. We draw a sharp line around what we can observe.
Methodology
Where the numbers come from.
Ratings, review counts, pricing, and categories come from the live Shopify App Store listing, refreshed daily. Review growth compares the observed snapshots across the trailing 30-day window. “Stores observed” and the platform split come from OngoingAI’s weekly storefront census — the real stores running each app, not the listing’s claimed totals. Comparison generated Aug 25, 2026.
See who’s switching — as it happens.
Track app adoption on live ecommerce stores. Find merchants running Klaviyo or Attentive, follow stack changes, and see when a store installs, removes, or replaces an app.