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Field-level data| Klaviyo | ONE | |
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| Description | ||
| Screenshots | images | images |
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| Developer |
| Klaviyo | ONE | |
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| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| Metric | Klaviyo: Email Marketing & SMS | ONE: AI, Pop Up, SMS Marketing |
|---|---|---|
| Rating | 4.7 ★ | ★ 4.9 ★ |
| Total reviews | ★ 3k | 947 |
| Free plan | Yes | Yes |
| Pricing | Free to install | Free plan available |
| Built for Shopify | — | — |
| Pricing tiers | ★ 3 tiers | 2 tiers |
| Listed features | 5 | 5 |
| Featured placements | 4 | — |
| Review velocity (30d) | 125 new | — |
| Languages | 10 supported | 19 supported |
| Listed since | Sep 2012 | Mar 2019 |
ONE: AI, Pop Up, SMS Marketing edges out Klaviyo: Email Marketing & SMS on rating (4.9★ vs 4.7★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number. Pricing entry tiers: Klaviyo: Email Marketing & SMS at Free to install, ONE: AI, Pop Up, SMS Marketing at Free plan available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (apps, orders, integrations) varies. Klaviyo: Email Marketing & SMS has the larger user base (2,992 reviews vs 947), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. ONE: AI, Pop Up, SMS Marketing's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended by store size: small/early-stage merchants who need fast install and low risk should default to ONE: AI, Pop Up, SMS Marketing; mid-market and enterprise merchants with specific feature requirements should evaluate both — Klaviyo: Email Marketing & SMS's 2,992-review base may include the workflow context that matches your specific use case better than ONE: AI, Pop Up, SMS Marketing's broader-but-shallower coverage. This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Klaviyo: Email Marketing & SMS audit • ONE: AI, Pop Up, SMS Marketing audit
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| Last updated | — | — |
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| Keyword | Klaviyo | ONE |
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| email marketing sms | #1 | #12 |
| sms marketing | #1 | #22 |
| email marketing | #1 | Not ranked |
| marketing sms | Not ranked | #13 |
Not featured in any section recently.
| Signal | Klaviyo | ONE |
|---|---|---|
| Average rating | 4.7 ★ (3k) | 4.9 ★ (947) |
| Rating distribution | 590% 42% 30% 21% 17% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +23 | — |
| Reviews · last 30 days | +125 | — |
| Reviews · last 90 days | +462 | — |
Both Klaviyo: Email Marketing & SMS and ONE: AI, Pop Up, SMS Marketing offer paid plans only. Klaviyo: Email Marketing & SMS starts at Free to install; ONE: AI, Pop Up, SMS Marketing starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
ONE: AI, Pop Up, SMS Marketing has the higher average rating (4.9★ from 947 reviews) compared to Klaviyo: Email Marketing & SMS (4.7★ from 2,992 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
It depends on what you're optimizing for. Klaviyo: Email Marketing & SMS fits better if you prioritize broader integrations; ONE: AI, Pop Up, SMS Marketing is the call if you need the higher-rated option. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. Klaviyo: Email Marketing & SMS has more onboarding documentation maturity (2,992 reviews vs 947), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
it has increased my sales for my business
We've been using Klaviyo for a long time and have continued to stay with the platform because of its rich feature set, ease of use, and flexibility. More importantly, it consistently delivers a strong return on investment, making it a valuable part of our marketing strategy.
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Klaviyo: Email Marketing & SMS typically suits early-stage and growth-mode stores based on its review-base composition (2,992 reviews). ONE: AI, Pop Up, SMS Marketing aligns more with early-stage and growth-mode stores (947 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Migration support varies by app and category. Klaviyo: Email Marketing & SMS and ONE: AI, Pop Up, SMS Marketing both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from ONE: AI, Pop Up, SMS Marketing" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
