Laura is the Senior Content Marketing Manager at Postscript. She has spent the past decade working in ecommerce. When she isn't writing about her favorite topic (marketing) or listening to podcasts about her other favorite topic (ecommerce), she's hanging out with her two sons on an island off the coast of Maine.
Onsite Opt-in Meets Alia Popups
If you’re using Alia popups, this one’s for you.
Starting today, you can pair your preferred popup tool with the industry’s most compliant, highest-converting SMS opt-in experience — Onsite Opt-in (OOI) from Postscript.
You’ll get best-in-class popup performance and SMS compliance all rolled into one.
Why we did this
We’ve always believed that great SMS starts with great list growth. And for Shopify brands, Onsite Opt-in has become the gold standard for doing it right — higher conversions, better attribution, full TCPA compliance, and a smooth, mobile-first experience built for how people actually shop.
So we partnered with Alia, a high-performing popup platform built exclusively for Shopify, to bring the best of both worlds together. You keep the popup tool you love. We bring the opt-in method your SMS program deserves.
What this means for you
If you’re a Postscript customer using Alia, you can now enable Onsite Opt-in directly inside your Alia popups.
You’ll get:
A trusted popup platform that’s fast, simple, and built for conversions
A compliant SMS opt-in method trusted by thousands of top Shopify brands
One seamless flow that captures more subscribers, right from your site
It’s all about merchant choice. And this integration reflects a bigger shift in how we think about growth: Onsite Opt-in isn’t just a Postscript feature anymore — it’s becoming the new standard across the ecosystem.
Meet Alia (if you haven’t already)
Alia’s not just another popup builder. They focus on doing one thing exceptionally well: helping brands grow their email and SMS lists through performance-obsessed popups that convert.
With features like:
Smart Triggering based on shopper behavior
Automated Smart Testing to optimize performance
A Shopify-first setup that just makes sense
Alia has become a go-to tool for growth-minded brands who want speed, simplicity, and results. And now, Alia users can tap into Postscript’s Onsite Opt-in to upgrade their SMS capture — without switching a thing.
What this partnership unlocks
This isn’t just a product integration — it’s a statement of intent.
Here’s what we’re really aiming for:
Bring Onsite Opt-in to more merchants
Make it easy for brands to adopt our compliant opt-in flow, no matter which popup they’re using.
Reinforce Onsite Opt-in as the industry standard
Set the bar high — and keep raising it.
Expand merchant choice
Let brands build the stack that works for them, without tradeoffs between tools and results.
Support a more open ecosystem
We’ll always support native Postscript surfaces — but great tech plays well with others, too.
Help more merchants grow, faster
With co-marketing, education, and real-world use cases that show what good looks like.
If you’re already using Alia: You can now plug in Postscript’s patented, opt-in method for better subscriber quality and conversion.
If you’re not using Alia: This partnership is proof that Postscript is committed to building an open, flexible, merchant-first SMS ecosystem — wherever and however you grow your list.
