Mautic
Mautic patches remote code execution in campaign import across three supported branches.
Comparison · Mkt Auto
AcyMailing vs Customer.io
A side-by-side editorial comparison of AcyMailing and Customer.io — release velocity, themes, recent moves, and the top alternatives to consider.
AcyMailing vs Customer.io: at a glance
| Feature | AcyMailing | Customer.io |
|---|---|---|
| Sector | Mkt Auto | Mkt Auto |
| Velocity score | 2.5 | 5.0 |
| Sparks · 30d | 0 | 0 |
| Top themes | email-marketing, joomla, gdpr, deliverability | api-keys, agentic-setup, design-studio, segmentation |
| Last editorial update | 7h ago | 15h ago |
| Website | Visit → | — |
What is AcyMailing?
AcyMailing 11.1 gives subscribers their own tracking switch and fixes one-click unsubscribe.
After the 11.0 security rework and five quick patches, AcyMailing moved to 11.1. 11.1.0 added a front-end checkbox for every user to manage tracking preferences, replaced the date picker with the native HTML one, fixed one-click unsubscribe via the List-Unsubscribe header and hardened some custom fields. 11.1.1 makes emails from its sending service lighter, blocks HTML in custom field values, improves OAuth error messages and stores Gravity Forms list choices in entries.
What is Customer.io?
Customer.io cuts its API credentials to public and private keys, and opens email to the API
Customer.io now offers public keys for browsers and apps and a private key that works across every API, so teams no longer juggle site IDs, Track API keys and App API keys. Other October releases: Design Studio API coverage of the full email lifecycle, snapshot segments, geofence dwell time, Firebase Installation ID support ahead of Firebase's move away from registration tokens, and agent-ready setup prompts for data-in integrations.
AcyMailing vs Customer.io: editorial side-by-side
AcyMailing
2.5MKT AUTO
AcyMailing 11.1 gives subscribers their own tracking switch and fixes one-click unsubscribe.
◆ Current state
After the 11.0 security rework and five quick patches, AcyMailing moved to 11.1. 11.1.0 added a front-end checkbox for every user to manage tracking preferences, replaced the date picker with the native HTML one, fixed one-click unsubscribe via the List-Unsubscribe header and hardened some custom fields. 11.1.1 makes emails from its sending service lighter, blocks HTML in custom field values, improves OAuth error messages and stores Gravity Forms list choices in entries.
◆ Where it's heading
Privacy and deliverability run through every release since July: optional IP collection, GDPR pixel tracking, anonymous statistics, and now user-controlled tracking and a working one-click unsubscribe. Security fixes keep appearing in minor releases.
◆ Prediction
Expect 11.1.x patches on roughly a two-week rhythm, with more privacy controls and integration fixes such as the Gravity Forms work.
Customer.io
5.0MKT AUTO
Customer.io cuts its API credentials to public and private keys, and opens email to the API
◆ Current state
Customer.io now offers public keys for browsers and apps and a private key that works across every API, so teams no longer juggle site IDs, Track API keys and App API keys. Other October releases: Design Studio API coverage of the full email lifecycle, snapshot segments, geofence dwell time, Firebase Installation ID support ahead of Firebase's move away from registration tokens, and agent-ready setup prompts for data-in integrations.
◆ Where it's heading
The product is being made easier for code and coding agents to drive. A single private key, a full-lifecycle Design Studio API and prompts built for CLI and MCP use all reduce manual setup. Audience work is moving alongside it, with point-in-time snapshots and location triggers that depend on how long someone stays rather than whether they passed by.
◆ Prediction
Expect more agent-oriented setup paths, since the prompts currently cover data-in integrations and recent entries lean on CLI and MCP tooling. Migration guidance for the older API credentials is also likely, though the entry does not mention retiring them.
Alternatives to AcyMailing and Customer.io
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 Customer.io.
SalesBlink
SalesBlink rebuilds warmup, binds AI emails to brand guardrails, and connects to ChatGPT.
Hunter
Hunter moves prospecting into AI assistants, with a ChatGPT app and MCP setup for every client.
Hello Bar
Hello Bar's popups now run surveys, polls and scheduled campaigns
Repurpose.io
Repurpose now pulls images from Google Drive and posts them to seven networks
OpnForm
OpnForm turns from AI features to page speed, self-hosting and upload fixes.
See all AcyMailing alternatives → · See all Customer.io alternatives →
Recent activity from AcyMailing and Customer.io
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoCustomer.ioPublic and private API keys for Customer.io APIs
- 10d agoCustomer.ioSend push notifications to Firebase Installation IDs
- 10d agoCustomer.ioGeofence dwell time: message people who stay, not just people who pass by
- 12d agoCustomer.ioSimplify your integration setup with our prompts
- 13d agoCustomer.ioSnapshot segments: capture your audience at a point-in-time
- 27d agoCustomer.ioDesign Studio API: manage email content end-to-end
- 28d agoAcyMailingAcyMailing 11.1.1
- 1mo agoAcyMailingAcyMailing 11.1.0
- 2mo agoAcyMailingAcyMailing 11.0.5
- 2mo agoAcyMailingAcyMailing 11.0.4
- 2mo agoAcyMailingAcyMailing 11.0.3
- 2mo agoAcyMailingAcyMailing 11.0.2
Frequently asked questions
What is the difference between AcyMailing and Customer.io?
They serve adjacent needs but don't currently overlap on shipped themes. Customer.io is currently shipping more aggressively (velocity 5.0 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 AcyMailing better than Customer.io?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Customer.io is currently shipping more aggressively (velocity 5.0 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 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 Customer.io?
Top Customer.io alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "Customer.io alternatives" section above for the current picks, or visit /alternatives/customer-io for the full list with editorial commentary on each.