Ghost
Ghost is quietly turning its newsletter into a lifecycle marketing engine.
Comparison · Mkt Auto
AcyMailing vs Gumloop
A side-by-side editorial comparison of AcyMailing and Gumloop — release velocity, themes, recent moves, and the top alternatives to consider.
AcyMailing vs Gumloop: at a glance
| Feature | AcyMailing | Gumloop |
|---|---|---|
| Sector | Mkt Auto | Mkt Auto |
| Velocity score | 5.0 | 7.5 |
| Sparks · 30d | 0 | 2 |
| Top themes | email-marketing, gdpr-compliance, security-hardening, self-hosted | agent-platform, mcp-connectors, company-brain, enterprise-governance |
| Last editorial update | 1d ago | 19h ago |
| Website | Visit → | — |
What is AcyMailing?
AcyMailing spent its 11.0 cycle on privacy plumbing and a security rewrite, not features.
AcyMailing crossed into 11.0 at the end of July, and the release carried a reworked codebase aimed at security plus a GDPR-driven option for handling pixel tracking. The two follow-up patches since have been almost entirely corrective — automations display, followup creation, multilingual campaigns, and restoring the pot file that custom translations depend on. The 10.11 line before it patched an SQL injection and added toggles for IP collection and a statistics recording delay.
What is Gumloop?
Gumloop stops selling agent-building and starts shipping a finished agent
Gumloop ships weekly digests that bundle connector work, governance controls, and model adds in one post. The platform underneath now covers Company Brain syncing from any connector, MCP coverage spanning ads, SEO, social, and enterprise suites, per-role model and connector policy, and a skill library kept in sync with a GitHub repo. The two newest releases change the shape of the product: Gumball, a first-party personal agent with its own standing jobs, and managed tunnels that let agents reach MCP servers running inside a customer's own network.
AcyMailing vs Gumloop: editorial side-by-side
AcyMailing
5.0MKT AUTO
AcyMailing spent its 11.0 cycle on privacy plumbing and a security rewrite, not features.
◆ Current state
AcyMailing crossed into 11.0 at the end of July, and the release carried a reworked codebase aimed at security plus a GDPR-driven option for handling pixel tracking. The two follow-up patches since have been almost entirely corrective — automations display, followup creation, multilingual campaigns, and restoring the pot file that custom translations depend on. The 10.11 line before it patched an SQL injection and added toggles for IP collection and a statistics recording delay.
◆ Where it's heading
This is a mature self-hosted mailer working through compliance and hardening rather than chasing capability. The consistent thread across both version lines is giving administrators switches for data they previously collected by default — open-tracking pixels, IP addresses on subscription, statistics timing. The rapid 11.0.1 and 11.0.2 patches suggest the codebase rework shook loose regressions the major release did not catch.
◆ Prediction
Expect the 11.0.x patch stream to continue for a few more releases as rework regressions surface, before any new functionality appears. The entries give no signal about what the next feature cycle targets.
Gumloop
7.5MKT AUTO
Gumloop stops selling agent-building and starts shipping a finished agent
◆ Current state
Gumloop ships weekly digests that bundle connector work, governance controls, and model adds in one post. The platform underneath now covers Company Brain syncing from any connector, MCP coverage spanning ads, SEO, social, and enterprise suites, per-role model and connector policy, and a skill library kept in sync with a GitHub repo. The two newest releases change the shape of the product: Gumball, a first-party personal agent with its own standing jobs, and managed tunnels that let agents reach MCP servers running inside a customer's own network.
◆ Where it's heading
Two arcs run in parallel. The plumbing is being hardened for enterprise deployment — private-network MCP, key-pair Snowflake auth, permission-aware Brain sources, audit logs, role-scoped connector access — while the product moves up the stack from a canvas where customers assemble agents to a packaged agent that arrives already knowing what to do. Connector breadth is the moat they widen most consistently, at roughly two to three new MCPs per release.
◆ Prediction
Expect Gumball to accumulate more built-in jobs and exit beta, and the MCP catalog to keep expanding at its current two-to-three-per-release cadence.
Alternatives to AcyMailing 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 AcyMailing or Gumloop.
Pimcore
Pimcore is spending 2026 hardening its data layer, one allowlist at a time.
MailBeez
MailBeez hardens its big 'V5' rewrite with PHP 8.x compatibility and up-to-10x page-load gains.
n8n
Two n8n release trains running in lockstep, both carrying only bug fixes this week.
OneSignal
OneSignal is arguing marketers should stop building journeys, and shipping agents to prove it
Buttondown
A near-daily fix stream, with flexible monthly RSS scheduling the only real addition.
See all AcyMailing alternatives → · See all Gumloop alternatives →
Recent activity from AcyMailing and Gumloop
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoAcyMailingFixes for automations, followups and multilingual campaigns
- 2d agoGumloopMeet Gumball (Beta) ⚡
- 3d agoAcyMailingConsent option in form preview, Loco Translate support restored
- 5d agoGumloopManaged Tunnels for Private MCP Servers ⚡
- 9d agoAcyMailingGDPR pixel-tracking option and a full codebase security rework
- 9d agoGumloopModel Access by Role
- 11d agoGumloopClaude Opus 5
- 16d agoGumloopSync Organization Skills from GitHub
- 18d agoGumloopAny Connector as a Brain Source
- 1mo agoAcyMailingSQL injection vulnerability patched
- 1mo agoAcyMailingIP-collection toggle and configurable statistics delay
- 1mo agoAcyMailingTimezone bug that blocked send and click statistics
Frequently asked questions
What is the difference between AcyMailing and Gumloop?
They serve adjacent needs but don't currently overlap on shipped themes. Gumloop is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 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 AcyMailing better than Gumloop?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Gumloop is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 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 AcyMailing?
Top AcyMailing alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "AcyMailing alternatives" section above for the current picks, or visit /alternatives/acymailing 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.