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1. Listing metadata
Field-level data| Klaviyo | Postscript SMS Marketing | |
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| Screenshots | images | images |
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| Listed |
| Klaviyo | Postscript SMS Marketing | |
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| Tagline | ||
| Description | ||
| Screenshots | images | images |
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| Listed |
Create and execute SMS programs to drive incremental revenue by engaging customers via text message
| Metric | Klaviyo: Email Marketing & SMS | Postscript SMS Marketing |
|---|---|---|
| Rating | 4.7 ★ | 4.7 ★ |
| Total reviews | ★ 3k | 1.1k |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free to install |
| Built for Shopify | — | — |
| Pricing tiers | 3 tiers | 3 tiers |
| Listed features | 5 | 5 |
| Featured placements | ★ 4 | 1 |
| Review velocity (30d) | 126 new | — |
| Languages | 10 supported | 1 supported |
| Listed since | Sep 2012 | Sep 2018 |
Klaviyo: Email Marketing & SMS and Postscript SMS Marketing are evenly matched on rating (4.7★ vs 4.7★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow. Pricing entry tiers: Klaviyo: Email Marketing & SMS at Free plan available, Postscript SMS Marketing at Free to install. 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 (2,996 reviews vs 1,123), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Postscript SMS Marketing's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort of orders for 7-14 days before committing. The data tables below show the per-feature breakdown — for most merchants the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone. 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 • Postscript SMS Marketing audit
| Last updated | — | — |
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| Keyword | Klaviyo | Postscript SMS Marketing |
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| sms marketing | #1 | #8 |
| and sms | #1 | #13 |
| messaging | #2 | #18 |
| email marketing | #2 | #182 |
| marketing | #2 | #211 |
No tracked changes.
| Signal | Klaviyo | Postscript SMS Marketing |
|---|---|---|
| Average rating | 4.7 ★ (3k) | 4.7 ★ (1.1k) |
| Rating distribution | 590% 42% 30% 21% 17% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +25 | — |
| Reviews · last 30 days | +126 | — |
| Reviews · last 90 days | +458 | — |
Both Klaviyo: Email Marketing & SMS and Postscript SMS Marketing offer paid plans only. Klaviyo: Email Marketing & SMS starts at Free plan available; Postscript SMS Marketing starts at Free to install. Compare the per-tier features in the Pricing section above before committing.
Klaviyo: Email Marketing & SMS (4.7★, 2,996 reviews) and Postscript SMS Marketing (4.7★, 1,123 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
It depends on what you're optimizing for. Klaviyo: Email Marketing & SMS fits better if you prioritize broader integrations; Postscript SMS Marketing is the call if you need the larger user base. 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 (2,996 reviews vs 1,123), 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.
Klaviyo: Email Marketing & SMS typically suits early-stage and growth-mode stores based on its review-base composition (2,996 reviews). Postscript SMS Marketing aligns more with early-stage and growth-mode stores (1,123 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.
Good sevice
It's brought me income the first day of activating our pop sign-up form. Which is what you really want from platforms like this! Thank you Klaviyo!
No reviews yet.
Migration support varies by app and category. Klaviyo: Email Marketing & SMS and Postscript 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 Postscript 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.
