Postscript alternatives
8 products compared · Updated November 5, 2026
The short answer
The three strongest alternatives to Postscript are Klaviyo, Omnisend and Braze. Klaviyo suits ecommerce and DTC brands that want email, SMS and WhatsApp run from one customer profile, with a free plan to start. Omnisend suits ecommerce brands that want email and SMS in one tool and plan to move off Klaviyo or Mailchimp. Braze suits mid-size and enterprise brands that need to orchestrate messages across many channels and apps, not just text and email.
Your shortlist, at a glance
Read the comparisons ↓
KlaviyoFree plan + usage-baseEcommerce and DTC brands that want email, SMS and WhatsApp run from one customer profile, with a free plan to start.
AttentiveCustom quoteMid-size and larger e-commerce brands that want SMS, email, RCS and push run from one customer profile- OOmnisendFrom $0.007/SMSEcommerce brands that want email and SMS in one tool and plan to move off Klaviyo or Mailchimp.
YotpoNot publishedShopify and other ecommerce brands that want reviews, loyalty rewards and AI search visibility in one tool instead of SMS-led retention.
BrazeCustom quoteMid-size and enterprise brands that need to orchestrate messages across many channels and apps, not just text and email for an online store.
IterableNot publishedGlobal brands and enterprise marketing teams that need real-time, cross-channel engagement built on unified customer data- SSegunoFrom $0/mo (250 subs)Shopify stores that want email, reviews and popups in one app billed through their Shopify invoice
EmarsysNot publishedEnterprise B2C brands already running SAP systems that need cross-channel journeys tied to operational data.
About Postscript and its alternatives
Postscript is an SMS and RCS revenue platform for e-commerce merchants. Its site describes an agentic retention platform that covers SMS, RCS and email, with AI products including Shopper, Infinity Testing and Brand Center, and a data layer it calls the Agentic Context Platform.
When comparing alternatives in this category, weigh the pricing structure first, since some tools bill by contact count, some by monthly active users, and some by message volume, and some publish no prices at all. Check regional coverage and per-message rates, because SMS costs vary by country and volume. Look at integrations with your store platform and data stack, the level of support included, and the contract terms and minimum commitments.
Explore the alternatives
- Free plan + usage-base
1.Klaviyo
Best for: Ecommerce and DTC brands that want email, SMS and WhatsApp run from one customer profile, with a free plan to start.
- Pricing
- Free plan + usage-base
- Category
- Marketing & Sales
Klaviyo is a B2C CRM that runs email, SMS, RCS, WhatsApp and mobile push from one customer profile, with AI agents that plan and launch campaigns. Choose it over Postscript if you need email as a core channel alongside SMS, or want a single platform for marketing, customer service and analytics.
Where it is strong
- Free plan includes email sends, text messages and reporting
- Email, SMS, RCS, WhatsApp and push share one customer profile
- 400+ pre-built integrations, including Shopify, WooCommerce and BigCommerce
Where it falls short
- Paid plans scale with contact count, which can get costly as your list grows
- SMS-first teams may find Postscript's SMS-focused tooling more specialised
- Pricing:
- Klaviyo has a free plan with email sends, text messages, Customer Hub and built-in reporting, and paid plans scale by contact count and channel usage, with enterprise pricing on request.
- Custom quote
2.Attentive
Best for: Mid-size and larger e-commerce brands that want SMS, email, RCS and push run from one customer profile
- Pricing
- Custom quote
- Category
- Marketing & Sales
Attentive is a marketing platform that sends personalized SMS, MMS, RCS, email and push messages, with AI tools for copy, send timing and audience targeting. Someone would pick it over Postscript when they want one customer identity and journey builder across several channels, not just SMS and email. Attentive's pricing is built around message volume, list size and which AI tools are added, so it suits teams that want that broader channel mix.
Where it is strong
- Covers SMS, MMS, RCS, email and push in one platform with a single customer ID
- AI tools for copy generation, send-time optimization and list growth are offered as add-ons
- Dedicated support team and onboarding help are part of the offer
Where it falls short
- Pricing depends on message volume, list size, channels and AI tools, so costs are hard to estimate in advance
- The site lists no specific rates or plan tiers to compare against Postscript's published prices
- Pricing:
- Pricing is not published on the site.
- OFrom $0.007/SMS
3.Omnisend
Best for: Ecommerce brands that want email and SMS in one tool and plan to move off Klaviyo or Mailchimp.
- Pricing
- From $0.007/SMS
- Category
- Other
Omnisend is an email and SMS marketing platform built for ecommerce brands, with integrations for Shopify, WooCommerce and other stores. Teams often pick it over Postscript when they want email and SMS in one tool with a cheaper or more predictable bill, and when they want free migration help from Klaviyo or Mailchimp.
Where it is strong
- Email and SMS sit in one platform, with web push notifications also included.
- The site offers a free 5-day migration and says invoices can be up to 35% smaller than Klaviyo's for similar features.
- It lists 330+ pre-built integrations and open APIs for custom builds.
Where it falls short
- Pricing for SMS varies by country and volume, so the headline rate may not match your region or send volume.
- Postscript's AI-native agent features, such as its Shopper product and Infinity Testing, are not described in the Omnisend material supplied
- Pricing:
- Pricing is published with plans for email and SMS, starting from $0.007 per SMS for high-volume US sends, with the site noting that per-SMS price varies by country and volume and that billing is in USD.
- Switching from Postscript:
- Omnisend says it migrates contacts, data and segments for you within five days, with no manual setup needed.
- Not published
4.Yotpo
Best for: Shopify and other ecommerce brands that want reviews, loyalty rewards and AI search visibility in one tool instead of SMS-led retention.
- Pricing
- Not published
- Category
- E-commerce
Yotpo bundles product reviews, loyalty and referral programs, and AI search visibility for ecommerce stores. A brand would pick it over Postscript when its main problem is social proof and repeat purchases rather than text message marketing, since Yotpo's reviews and loyalty tools sit at the center of the product.
Where it is strong
- Reviews, UGC galleries and loyalty rewards are the core of the product, not add-ons.
- Includes tools to track how AI engines recommend your products.
- Offers 180+ integrations to connect it with an existing martech stack.
Where it falls short
- Its focus is on reviews and loyalty, so it does not match Postscript's depth in SMS and RCS messaging.
- Pricing is not listed, so you need to request a quote to compare costs.
- Pricing:
- Pricing is not published on the site.
- Custom quote
5.Braze
Best for: Mid-size and enterprise brands that need to orchestrate messages across many channels and apps, not just text and email for an online store.
- Pricing
- Custom quote
- Category
- Marketing & Sales
Braze is a cross-channel customer engagement platform that covers email, push, SMS, MMS, RCS, WhatsApp, in-app messages and more from one data layer. Teams pick it over Postscript when they need messaging beyond SMS and email, such as push notifications or in-app messages, or when they run on a data stack that goes past Shopify.
Where it is strong
- Covers push, in-app, WhatsApp, LINE and KakaoTalk alongside SMS and email.
- Has a built-in data platform for cloud data ingestion, segmentation and transformation.
- Includes BrazeAI tools for campaign building, content optimization and testing.
Where it falls short
- Pricing is tied to monthly active users and credits, which can be harder to forecast than a flat monthly plan.
- The top tiers are geared toward larger teams, and the features needed for a small store may sit in a higher-priced edition.
- Pricing:
- Braze does not publish specific dollar figures on its pricing page. Plans are Go, Select, Pro and Enterprise, and cost scales with monthly active users and Action Credits.
- Not published
6.Iterable
Best for: Global brands and enterprise marketing teams that need real-time, cross-channel engagement built on unified customer data
- Pricing
- Not published
- Category
- Marketing & Sales
Iterable is an AI customer engagement platform for brands that want to respond to customer behavior in real time across channels. It unifies behavioral, product and engagement data, and uses its Nova layer to pick next-best actions and surface what is driving performance. Someone would choose it over Postscript if they run marketing across many channels beyond SMS and want AI decisioning and a unified data layer at enterprise scale.
Where it is strong
- Real-time AI decisioning based on behavior, context and performance signals
- Unified behavioral, product and engagement data across channels
- Nova agents automate audience, journey and campaign work while keeping teams in control of goals
Where it falls short
- Positioned around enterprise brands, so smaller teams may find it heavier than they need
- Pricing is not published, so cost has to be found through sales contact
- Pricing:
- Pricing is not published on the site.
- SFrom $0/mo (250 subs)
7.Seguno
Best for: Shopify stores that want email, reviews and popups in one app billed through their Shopify invoice
- Pricing
- From $0/mo (250 subs)
- Category
- Other
Seguno is a Shopify-native email marketing suite that also covers product reviews and popups and forms. It is built to live inside Shopify, so you do not bounce between apps to run campaigns and automations. Pick it over Postscript if your store is on Shopify and email is your main channel, since its pricing is tied to active subscribers rather than messaging volume.
Where it is strong
- Built inside Shopify, so billing runs through your Shopify invoice with no separate contract.
- Includes product reviews and popups alongside email, under one suite.
- Free plan available for stores with 250 or fewer subscribers, with a 10-day trial of premium features.
Where it falls short
- Its SMS and RCS capabilities are not described on the site, so it is not a match for text-first retention the way Postscript is.
- Several features, such as the Professional plan's priority support and customer success manager, sit behind the $215/month tier.
- Pricing:
- Seguno's site lists a free plan for up to 250 subscribers, a Standard plan at $35/month and a Professional plan at $215/month, billed through Shopify with only active subscribers counted.
- Switching from Postscript:
- Seguno offers 1:1 migration and onboarding support for Shopify Plus stores and brands with over 25,000 subscribers.
- Not published
8.Emarsys
Best for: Enterprise B2C brands already running SAP systems that need cross-channel journeys tied to operational data.
- Pricing
- Not published
- Category
- Marketing & Sales
SAP Engagement Cloud is the renamed Emarsys platform, now tied into SAP's wider data and AI stack. It runs personalized campaigns and journeys across email, web, mobile, ads and other channels, with AI agents handling execution. A team already running SAP Commerce, Sales or Service Cloud would choose it over Postscript because it connects marketing to those systems directly. Postscript is built around SMS and RCS for e-commerce merchants.
Where it is strong
- Connects marketing to SAP Commerce, Sales Cloud, Service Cloud and core SAP systems
- Covers email, web, mobile and ads, not only SMS
- Recognized as a Leader in the 2026 Gartner Magic Quadrant for Personalization Engines
Where it falls short
- Built for enterprise buyers, so it is a poor fit for a small Shopify store
- No public pricing to compare against Postscript's plans
- Pricing:
- Pricing is not published on the site.
- Switching from Postscript:
- Moving from Postscript would mean rebuilding SMS flows and segments inside a platform designed around SAP data, which is a larger project than a simple tool swap.
See more comparisons in Marketing & Sales alternatives.
FAQ
Questions about Postscript alternatives
Which alternative is best if I want email and SMS in one tool on a budget?
Omnisend is built for ecommerce brands that want email and SMS in one platform. Its site lists per-SMS pricing starting from $0.007 for high-volume US sends, and it says invoices can be up to 35% smaller than Klaviyo's for similar features. Note that SMS pricing varies by country and volume.
Is there a free option to try before paying?
Klaviyo has a free plan that includes email sends, text messages, Customer Hub and built-in reporting. Seguno also offers a free plan for stores with up to 250 subscribers, billed through Shopify. Postscript itself offers a free trial with a $100 credit usable in the first 30 days.
Which alternatives suit a Shopify store that runs mostly on email?
Seguno is a Shopify-native email suite that also covers product reviews and popups, billed through the Shopify invoice. Its pricing is tied to active subscribers, with plans listed at $35 and $215 per month. Klaviyo and Omnisend also integrate with Shopify and cover email as a core channel.
Which options are aimed at large enterprises rather than small stores?
Braze, Iterable and Emarsys (SAP Engagement Cloud) are built for larger teams. Braze covers many channels including push and WhatsApp, Iterable focuses on real-time AI decisioning across channels, and Emarsys connects marketing to SAP systems. None of these publish full pricing, so you will need to request a quote.
How do I compare costs when an alternative does not publish prices?
Several alternatives, including Attentive, Yotpo, Iterable and Emarsys, do not list pricing on their sites. Costs for these tools depend on factors such as message volume, list size, active users and chosen add-ons, so ask each vendor for a quote based on your expected volumes. Compare the quotes against Postscript's published SMS and RCS rates and its plan tiers of $0, $100, $500 and custom Enterprise pricing.
Last updated November 5, 2026.