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Comparison · Mkt Auto

OpenEMM vs Postscript

A side-by-side editorial comparison of OpenEMM and Postscript — release velocity, themes, recent moves, and the top alternatives to consider.

OpenEMM vs Postscript: at a glance

FeatureOpenEMMPostscript
SectorMkt AutoMkt Auto
Velocity score5.00.0
Sparks · 30d00
Top themesemail-marketing, self-hosted, release-cadence, open-sourcesms-marketing, rcs, conversational-ai, agentic-automation
Last editorial update1d ago2mo ago
WebsiteVisit →Visit →

What is OpenEMM?

OpenEMM 26.11 reaches GA eight days after its beta.

OpenEMM released 26.11.169 as the general-availability build of the 26.11 line on November 12, eight days after the 26.11.136 beta. The notes list only the frontend version. The 26.05 line it replaces reached GA in July and has had only frontend builds since.

Read the full OpenEMM trajectory →

What is Postscript?

Postscript is handing SMS marketing to an agent that decides each subscriber's next message

Postscript is an SMS and RCS platform for Shopify merchants, and this archive shows it working two fronts at once. On acquisition it has multiplied the places a subscriber can opt in — embedded forms droppable on any page, standalone landing pages built on the popup editor, and Onsite Opt-in at Shoptin checkout. On messaging it is building Shopper, a conversational AI layer that now answers, analyses and increasingly initiates. The feed carries no publication dates, so this is an archive rather than a timeline.

Read the full Postscript trajectory →

OpenEMM vs Postscript: editorial side-by-side

O
OpenEMM
MKT AUTO
5.0

OpenEMM 26.11 reaches GA eight days after its beta.

◆ Current state

OpenEMM released 26.11.169 as the general-availability build of the 26.11 line on November 12, eight days after the 26.11.136 beta. The notes list only the frontend version. The 26.05 line it replaces reached GA in July and has had only frontend builds since.

◆ Where it's heading

OpenEMM keeps its twice-yearly cycle: a beta, a GA, then months of frontend-only maintenance builds. The notes never say what a line changes, so the cadence is the only visible signal.

◆ Prediction

Expect frontend-only 26.11 maintenance builds over the coming months; the entries give no hint of feature content.

P
Postscript
MKT AUTO
0.0

Postscript is handing SMS marketing to an agent that decides each subscriber's next message

◆ Current state

Postscript is an SMS and RCS platform for Shopify merchants, and this archive shows it working two fronts at once. On acquisition it has multiplied the places a subscriber can opt in — embedded forms droppable on any page, standalone landing pages built on the popup editor, and Onsite Opt-in at Shoptin checkout. On messaging it is building Shopper, a conversational AI layer that now answers, analyses and increasingly initiates. The feed carries no publication dates, so this is an archive rather than a timeline.

◆ Where it's heading

The centre of gravity is shifting from campaign tooling to per-subscriber decisioning. Shopper began as a responder, then gained a research surface over its own conversations, and now decides send timing and content for each individual. Alongside that, RCS is the delivery-side bet: webviews, dynamic product photos and tappable suggested replies all work to make the message thread the destination rather than a pointer to the storefront. Experimentation is being pushed into more of the journey rather than confined to campaign sends.

◆ Prediction

Expect the remaining hand-built primitives — static flows and manual segments — to be folded into Shopper's decisioning, and each new RCS capability to keep shipping with an automatic MMS or browser fallback so merchants can adopt it without maintaining a second path.

Alternatives to OpenEMM and Postscript

Other Mkt Auto products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either OpenEMM or Postscript.

See all OpenEMM alternatives → · See all Postscript alternatives →

Recent activity from OpenEMM and Postscript

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoOpenEMMOpenEMM 26.11 reaches GA
  2. 9d agoOpenEMMOpenEMM 26.11 enters beta
  3. 1mo agoOpenEMM26.05.132: Frontend-only build, no release notes
  4. 2mo agoOpenEMM26.05.111: Frontend-only build, no release notes
  5. 4mo agoOpenEMMOpenEMM 26.05 line reaches GA
  6. 10mo agoOpenEMM25.11 maintenance release (25.11.078)

Frequently asked questions

What is the difference between OpenEMM and Postscript?

They serve adjacent needs but don't currently overlap on shipped themes. OpenEMM is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is OpenEMM better than Postscript?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. OpenEMM is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Mkt Auto products to evaluate alongside.

What are the best alternatives to OpenEMM?

Top OpenEMM alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "OpenEMM alternatives" section above for the current picks, or visit /alternatives/openemm for the full list with editorial commentary on each.

What are the best alternatives to Postscript?

Top Postscript alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "Postscript alternatives" section above for the current picks, or visit /alternatives/postscript for the full list with editorial commentary on each.