Klaviyo vs Postscript

Name: Klaviyo
Availability: InStock
Author: Klaviyo

The Shopify stores running each, App Store rankings, reviews and pricing, side by side and updated daily.

Watch both apps

Shopify stores

Klaviyo

76,568

Postscript

4,831

Shopify stores where a scan detected each app.

Listed reviews

3,3501,206

+73 vs +0 in 28 days

Rating

4.74.7

SMS marketing

#1vs#27

Klaviyo ahead on 28 of 28 days

Developer replies

50%0%

Share of captured reviews with a reply

What stands out

Different footprintsWe detect Klaviyo on 15.8× as many Shopify stores: 76,568 against 4,831.
The rank gap held every dayKlaviyo ranked above Postscript in SMS marketing on 28 of 28 days.
Review momentumOver the last 28 days Klaviyo's listed reviews moved +73 and Postscript's +0.

Stores

Who runs each app

Klaviyo76,568 stores

Platforms

Shopify93%
WooCommerce3%
Magento (Adobe Commerce)2%
BigCommerce1%

Postscript4,831 stores

See the stores running both. Compare when we first detected each app, store by store, with a free account.

Compare their stores

Category rank

Where each ranks, day by day

SMS marketing: Klaviyo ahead on 28 of 28 days. Latest observed #1 vs #27.

Reviews

Listed review totals over time

Percentage change from 07 Sep 2026, last 28 days.

KlaviyoPostscript

Events

Replies to 1–2★ reviews

54%5%

Of captured critical reviews

5★ share

89%95%

Of captured reviews

Reviews read

3,1271,154

71% and 100% with text

Pricing

Listed plans side by side

KlaviyoFree to install

FreeFree to install
SMS$15 / month
Email$20 / month

PostscriptFree to install

StarterFree to install
Growth$100 / month
Professional$500 / month

Allowances and billing models differ, so compare the terms before the prices.

Capabilities

What each lists that the other doesn't

Only in Klaviyo's listing38

Email marketingEmail campaignsSMS campaignsPush notificationsNewslettersPop-upsFormsDiscountsPromotionsUpsell emailsCross-sell emailsCart emailsCheckout emailsExit intentBrowse abandonmentWelcome emailsFollow-up emailsPrice drop emailsBack-in-stock emailsWin-back emailsProduct recommendationsDrip campaignsSubscriptionsProduct reviewsCustom campaignsEditor toolAI generationLocalizationCustom codeCustom fontsBulk editingImport and exportEmail domainsConsent collectionEmail capture listSMS capture listTriggers and rulesAutomations

Only in Postscript's listing14

SMS notificationsPop-up builderTriggersA/B testingSMS marketingCompliancePersonalized messagesScheduled messagesTwo-way messagingSegmentationOpt-inCart recoveryWelcome messagesOne-time password (OTP)

2 feature labels appear in both listings · Show shared labels

Abandoned cart · Templates

Each label is in the developer's own wording. A feature missing from a listing may still be available.

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