Postscript is an SMS marketing platform for ecommerce brands, built to drive revenue through text campaigns while staying ahead of compliance headaches. postscript.io
Public NPS · 12 mo
+33
Postscript wins trust by winning legal fights for merchants, but ROI math needs real scrutiny.
Postscript's legal battles with Attentive and regulatory wins dominate comparison chatter, generally framed as a win for Postscript's credibility.
“I have major news to share. But I wanted to let this play out in court before I spoke about it here. Over 2.5 years ago @attentiveHQ sued @PostscriptIO for patent infringement over their “two tap” technology. And in the…”
Brands see SMS driving strong returns via Postscript, though at least one deep-dive questioned whether the revenue math holds up under scrutiny.
“Postscript just saved sms for everyone… AGAIN”
New features like Onsite Opt-in Engage and common Klaviyo pairings show up frequently, alongside a caution about differing attribution settings.
“I just got back from my favorite thing that we do at @PostscriptIO . It's truly the highlight of the entire year for me. Earlier this week, we hosted our 2nd annual, Customer Advisory Board in Napa, California at Stanly…”
Successful onboarding stories and an active customer advisory community suggest strong retention practices, tempered by one critical revenue teardown.
“Champagne day at the Nashville Postscript office (my bedroom office) Another brand has joined the 1,000,000 SMS subscriber club 🍾 They onboarded in 2023. Never touched SMS marketing. Zero phone numbers. Our team has bee…”
Postscript's Texas SB140 court win is the standout story, seen as protecting customers from costly registration requirements competitors pushed.
“I am so pumped to share this... we WON in texas. This means all Postscript customers are carved out from SB140 (the new texas sms law). To be extra clear, if you are a Postscript customer or EIA member, no registeration,…”
Most performance mentions are positive, framing SMS as a high-return channel, though attribution methodology draws some scrutiny.
“Every brand is different and is free to allocate their resources however they like. Of course. BUT, to cut out SMS entirely means you believe a few things. 1) You believe the value of a double opt in number from a custom…”
Postscript's growth past $100M in revenue is noted as a milestone, with mixed sentiment on broader market positioning.
“When I joined Postscript 4+ years ago my thesis was: 1) Ecommerce would continue to grow even with potential headwinds 2) Brands would coalesce under Shopify as the top player 3) SMS was the next frontier for direct mark…”
“Sidenote from the Yotpo news. Last week, former frenemy and now just friend @robinreplies, called Postscript the "craft brewer of DTC". She didn't mean anything by it (in fact she was trying to be complimentary), BUT it…”
“Tore down a $1.6M/year athleisure brand's SMS strategy this morning. They were spending $1,840/month on Postscript. SMS attributed revenue: $4,200/month Seems decent until you look at the numbers. What I found: SMS subsc…”
“Always make a point to check attribution windows. I was bringing over a client from postscript to Klaviyo for sms, and postscript had some crazy 7 day clicked attribution window. That massively affects the way results ar…”
Postscript's biggest differentiator isn't a feature — it's a fight. The company took on Texas's SB140 SMS law and won, carving out its customers from onerous registration and disclosure requirements. That kind of regulatory muscle earns real loyalty, and brands see it as Postscript "standing on business" while competitors told merchants to register and pay up. On the product side, the Onsite Opt-in Engage launch (one-time passcodes to keep brand numbers eligible for Known Sender inbox placement) shows the team building around deliverability, not just messaging volume.
The numbers aren't always as clean as they look. One teardown of a $1.6M/year brand found SMS revenue barely covering ad spend once messages-sent and subscriber counts were factored in — a reminder that raw "attributed revenue" can be misleading. Attribution windows are also a sore point: Postscript's default 7-day clicked attribution skews comparisons against platforms like Klaviyo, which use a 1-day standard. Anyone benchmarking channels needs to normalize this before trusting the dashboard.
Postscript is treated as a category leader for SMS-first ecommerce brands, especially those already leaning into Shopify and layering email via Klaviyo. Its growth past $100M in revenue and its willingness to litigate on merchants' behalf give it a credibility edge over rivals like Attentive. But brands should push past top-line "SMS attributed revenue" claims and verify performance with apples-to-apples attribution before scaling spend.</summary_md> <parameter name="reddit_md">## What the community says about Postscript Merchants and consultants generally rank Postscript as a top-tier SMS platform, especially praising its legal wins that shield brands from new compliance burdens. The main skepticism centers on attribution — people flag that Postscript's longer attribution window can inflate perceived ROI compared to other tools, and some teardown threads question whether SMS spend is truly paying off at scale.
Merchants and consultants generally rank Postscript as a top-tier SMS platform, especially praising its legal wins that shield brands from new compliance burdens. The main skepticism centers on attribution — people flag that Postscript's longer attribution window can inflate perceived ROI compared to other tools, and some teardown threads question whether SMS spend is truly paying off at scale.
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For SMS-first ecommerce brands, yes — merchants report strong returns and value its regulatory advocacy, though ROI claims should be checked against normalized attribution windows.
The biggest gripe is Postscript's longer attribution window making SMS performance look better than apples-to-apples comparisons would show.
Postscript gets more favorable buzz recently, largely fueled by its legal win over Attentive's patent suit and its Texas SMS law victory, both seen as wins for merchants.
Yes — Postscript successfully fought Texas's SB140 law in court, exempting its customers from registration, bonding, and disclosure requirements that competitors told brands to comply with.
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