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Comparison · Mkt Auto
CartStack vs Gumloop
A side-by-side editorial comparison of CartStack and Gumloop — release velocity, themes, recent moves, and the top alternatives to consider.
CartStack vs Gumloop: at a glance
| Feature | CartStack | Gumloop |
|---|---|---|
| Sector | Mkt Auto | Mkt Auto |
| Velocity score | 2.5 | 6.3 |
| Sparks · 30d | 0 | 0 |
| Top themes | cart-abandonment, email-recovery, reporting, deliverability | ai agents, agent governance, enterprise, data security |
| Last editorial update | 2d ago | 18h ago |
| Website | Visit → | — |
What is CartStack?
Five months after its rebuild, CartStack's first follow-up is product-level export data.
CartStack recovers abandoned carts and bookings through email sequences, and rebuilt its platform as CartStack 5.0 in June 2026 with a clearer dashboard, a reorganized campaign builder and date-range comparison in reports. The first feature since then adds cart items and attributes to recovered-order, send-queue and send-archive exports, so merchants can see what was recovered, not just that it was.
What is Gumloop?
Gumloop 13.6 gives admins one set of rules for every tool an agent touches.
Gumloop ships a numbered release every few days. 13.0 rebuilt the agent harness, 13.3 published agents to Okta, 13.4 cut agent tokens per step by about 40% and 13.5 added live multi-user tasks. 13.6 extends admin guardrails from connectors to every tool, redacts card numbers and passwords before models see them, warns when agent instructions contain credentials, adds browser allow and block lists and domain-restricted API keys, and introduces Workforce Atlas, a board of every agent and skill in the organization.
CartStack vs Gumloop: editorial side-by-side
CartStack
2.5MKT AUTO
Five months after its rebuild, CartStack's first follow-up is product-level export data.
◆ Current state
CartStack recovers abandoned carts and bookings through email sequences, and rebuilt its platform as CartStack 5.0 in June 2026 with a clearer dashboard, a reorganized campaign builder and date-range comparison in reports. The first feature since then adds cart items and attributes to recovered-order, send-queue and send-archive exports, so merchants can see what was recovered, not just that it was.
◆ Where it's heading
Release notes come a few times a year and center on reporting and deliverability: aggregate reports, totals, pre-send email validation, one-click unsubscribe, and now product-level exports. The 5.0 post promised a steady stream of features after the rebuild, but only one has shipped in five months.
◆ Prediction
The next releases will likely build on the product data now flowing into exports, for example per-product recovery reporting in the dashboard; the gap since 5.0 makes the timing unclear.
Gumloop
6.3MKT AUTO
Gumloop 13.6 gives admins one set of rules for every tool an agent touches.
◆ Current state
Gumloop ships a numbered release every few days. 13.0 rebuilt the agent harness, 13.3 published agents to Okta, 13.4 cut agent tokens per step by about 40% and 13.5 added live multi-user tasks. 13.6 extends admin guardrails from connectors to every tool, redacts card numbers and passwords before models see them, warns when agent instructions contain credentials, adds browser allow and block lists and domain-restricted API keys, and introduces Workforce Atlas, a board of every agent and skill in the organization.
◆ Where it's heading
Since 13.2 the releases have moved from what agents can do toward how a company controls them. 13.6 is the broadest step yet: approval rules, data redaction and secret handling now cover all agent activity, which is what security teams ask for before a wide rollout.
◆ Prediction
Expect Workforce Atlas to leave beta with more tags and reporting, and more enterprise controls such as audit exports built on the new guardrail records.
Alternatives to CartStack and Gumloop
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 CartStack or Gumloop.
Postiz
Postiz encrypts channel tokens and lets agents send connect links for new channels.
n8n
n8n fixes executions being redacted when they used global credentials, on three lines.
AcyMailing
AcyMailing 11.1.2 closes holes that let strangers read or unsubscribe any subscriber.
Buttondown
Buttondown lets writers reorder editor blocks without a mouse.
GetResponse
GetResponse now ships a playbook so AI agents can run its email marketing.
See all CartStack alternatives → · See all Gumloop alternatives →
Recent activity from CartStack and Gumloop
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoGumloopGumloop 13.6: tool-wide guardrails, redaction, Workforce Atlas
- 2d agoCartStackProduct Data Now Available in Your Exports
- 7d agoGumloopGumloop 13.5: live multi-user tasks and change-since MCP tools
- 9d agoGumloopGumloop 13.4: leaner toolset, cross-team views, admin browser proxy
- 14d agoGumloopPublish Agents to Okta
- 16d agoGumloopGumloop 13.2: team Homes, App Rules, artifact annotations
- 18d agoGumloopGumloop 13.1: artifacts drive agents via SDK, open in Office
- 5mo agoCartStackCartStack 5.0 Is Here — A New Era for Customer Recovery
- 1y agoCartStackNew Webhook: Abandoned Sequence Completed
- 2y agoCartStackPre-Email Validation
- 2y agoCartStackNew Feature: One-Click Unsubscribe
- 2y agoCartStackNew Aggregate Report Feature: Report Total
Frequently asked questions
What is the difference between CartStack and Gumloop?
They serve adjacent needs but don't currently overlap on shipped themes. Gumloop is currently shipping more aggressively (velocity 6.3 vs 2.5), 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 CartStack better than Gumloop?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Gumloop is currently shipping more aggressively (velocity 6.3 vs 2.5), 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 CartStack?
Top CartStack alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "CartStack alternatives" section above for the current picks, or visit /alternatives/cartstack for the full list with editorial commentary on each.
What are the best alternatives to Gumloop?
Top Gumloop alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "Gumloop alternatives" section above for the current picks, or visit /alternatives/gumloop for the full list with editorial commentary on each.