VETTED SAAS
Alternatives · SMS

Best Postscript alternatives

The SMS tools we would weigh against Postscript when you are not on Shopify, want a different price model, or need a managed program.

Postscript is the strongest pick when you sell on Shopify, because it is built natively around store and order data. Buyers most often look elsewhere for one of three reasons: they are not on Shopify, they want SMS unified with email on one platform, or they want a managed enterprise service rather than self serve. The four below cover those exits, from an ecommerce platform that pairs SMS with email to a managed enterprise tool to plain small business texters. Each carries our editorial score and a verified entry price so you can match the tradeoff to your store.

Some links below are affiliate links. We may earn a commission · it never affects our rankings, which are editorial and never for sale. Disclosure.

Reviewed by ·Updated MAY 2026·How we vet
The shortlist

Four SMS tools we would weigh first

SMS Marketing 92 Klaviyo SMS Ecommerce SMS unified with email and customer data. Read verdict → SMS Marketing 91 Attentive Enterprise managed SMS with a hands on team and AI. Read verdict → SMS Marketing 87 SimpleTexting Simple self serve texting for small business. Read verdict → SMS Marketing 83 SlickText Small business texting with rollover credits. Read verdict →
At a glance

How they compare

Scores are editorial assessments against our SMS marketing rubric. Price from as of June 2026; check the vendor for current pricing.

Tool Best for Price from Score
Klaviyo SMS Ecommerce SMS with email Free / $35 92
Attentive Enterprise managed SMS Custom 91
SimpleTexting Simple small business texting $39 87
SlickText Small business texting with rollover $29 83
Decision framework

Which one fits you

Klaviyo SMS you run ecommerce and want SMS unified with email, segments and flows on one platform, whether or not your store is on Shopify.
Attentive you have real volume and want a team to run SMS for you, with managed deliverability and AI, and you can accept a custom contract with minimums.
SimpleTexting you want plain, self serve texting for a small business or non ecommerce use, with predictable monthly credit plans and rollover.
SlickText you want simple small business texting with rollover credits and live support, without tying SMS to a Shopify store.
Common questions

Postscript alternatives FAQ

What is the best Postscript alternative?

It depends on why you are leaving. Klaviyo SMS is the best pick for SMS unified with email, Attentive the best managed enterprise option, SimpleTexting the simplest small business texter, and SlickText a strong rollover friendly option. Scores are editorial; pricing verified June 2026.

Is there a cheaper alternative to Postscript?

Postscript carries a $49 minimum on Starter and $100 on Growth, so for low volume a credit tool like SimpleTexting from $39 or SlickText from $29 can cost less. The cheapest fit depends on your send volume. Verified June 2026; check the vendor for current pricing.

Which Postscript alternative works without Shopify?

All four. Klaviyo SMS, Attentive, SimpleTexting and SlickText work outside Shopify, unlike Postscript which requires a Shopify store. Klaviyo SMS is the most ecommerce focused of the four for non Shopify stores.

Do I need Shopify to use Postscript?

Yes. Postscript requires a Shopify store and is built around Shopify data. If you are not on Shopify, choose a platform like Klaviyo SMS or a self serve texter like SimpleTexting instead.

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