MISP
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Comparison · Infra & APIs
Authelia vs Userback
A side-by-side editorial comparison of Authelia and Userback — release velocity, themes, recent moves, and the top alternatives to consider.
Authelia vs Userback: at a glance
What is Authelia?
Authelia patches two access control bypass paths from canonicalization gaps.
Authelia v4.39.x is in a sustained hardening cycle: a critical security release in May fixed two authentication bypass paths, and subsequent patch releases have worked through a dense queue of OIDC protocol compliance bugs — resource indicators, client credentials foreign key handling, authentication strategy configuration, and resource strategy matching. The pace of micro-patches (v4.39.21 through v4.39.25 in a two-week window) reflects active production use surfacing edge cases.
What is Userback?
Userback adds AI theme analysis and MCP, shifting from feedback collector to feedback intelligence layer
Userback has shipped a consistent stream of new capabilities since early 2026, anchored by two structural moves: Userback Insights (AI-driven automatic theme analysis, April) and MCP integration (also April), which together made user feedback automatically categorized and accessible to AI toolchains. A mobile SDK launched in April and gained survey capability in August, closing the gap between mobile and web collection. The platform now spans web feedback, mobile collection, video recording with transcription, Slack-sourced feedback, and AI-powered pattern detection.
Authelia vs Userback: editorial side-by-side
Authelia
5.0INFRA · APIS
Authelia patches two access control bypass paths from canonicalization gaps.
◆ Current state
Authelia v4.39.x is in a sustained hardening cycle: a critical security release in May fixed two authentication bypass paths, and subsequent patch releases have worked through a dense queue of OIDC protocol compliance bugs — resource indicators, client credentials foreign key handling, authentication strategy configuration, and resource strategy matching. The pace of micro-patches (v4.39.21 through v4.39.25 in a two-week window) reflects active production use surfacing edge cases.
◆ Where it's heading
The OIDC fix pattern is deliberate: Authelia is closing gaps in the parts of OAuth 2.0/OIDC that enterprise clients actually use — resource indicators, client credentials grants, pooled authentication. This isn't maintenance drift; it's building toward a more complete OIDC server for complex multi-client deployments. The access control canonicalization fix from May signals a broader audit of how Authelia normalizes domain names and usernames before authorization decisions.
◆ Prediction
The OIDC compliance fixes in v4.39.x are groundwork for new grant types and flows in a future major version. Expect device authorization flow or Pushed Authorization Requests (PAR) to appear in a v4.40 or v5.x roadmap entry once the protocol surface is cleaned up.
Userback
0.0INFRA · APIS
Userback adds AI theme analysis and MCP, shifting from feedback collector to feedback intelligence layer
◆ Current state
Userback has shipped a consistent stream of new capabilities since early 2026, anchored by two structural moves: Userback Insights (AI-driven automatic theme analysis, April) and MCP integration (also April), which together made user feedback automatically categorized and accessible to AI toolchains. A mobile SDK launched in April and gained survey capability in August, closing the gap between mobile and web collection. The platform now spans web feedback, mobile collection, video recording with transcription, Slack-sourced feedback, and AI-powered pattern detection.
◆ Where it's heading
Userback is expanding from a feedback-capture widget into a feedback intelligence layer — one that surfaces themes, routes to AI tools, and reduces manual review overhead. The Insights and MCP features are the architectural bets; everything else fills out the collection perimeter. The mobile SDK survey expansion in August suggests continued broadening of capture surfaces before going deeper on the intelligence side.
◆ Prediction
The next move is likely deeper AI triage at ingest — automatic categorization by severity or type — building on the theme-detection work in Insights. The gap between identifying a theme and routing it to the right team is where the product can add the most friction-reduction next.
Alternatives to Authelia and Userback
Other Infra & APIs 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 Authelia or Userback.
werf
werf v3.x dev channel drops CNI for netavark networking while the 2.x alpha track holds to bug fixes
Knock
Knock plants its flag across every major AI platform: Claude, ChatGPT, Codex, and Cursor all get native connectors
Honeybadger
Honeybadger pivots from error tracker to full observability layer with AI-native query and anomaly detection
Resend
Resend expands from email API to full platform with SSO, analytics, and AI-native dev tooling
Helm
Helm 3 ships its final minor release while Helm 4.3 eliminates multi-minute status computation delays.
See all Authelia alternatives → · See all Userback alternatives →
Recent activity from Authelia and Userback
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 16h agoAutheliav4.39.25
- 1d agoAutheliav4.39.24
- 2d agoAutheliaFive OIDC protocol fixes in v4.39.23
- 7d agoAutheliav4.39.22
- 8d agoAutheliaMulti-area hardening: LDAP auth, OIDC, and API endpoint fixes in v4.39.21
- 1mo agoUserbackUserback Mobile SDK: Now With Surveys
- 2mo agoUserbackNew Feature: Notification History
- 2mo agoUserbackMerging Duplicate Feedback Just Got a Lot Faster
- 3mo agoUserbackNew Feature: Video Transcription
- 3mo agoAutheliaAuthelia patches two access control bypass paths: domain miss and LDAP username canonicalization ⚡
- 4mo agoUserbackNew Feature: Userback Insights ⚡
- 4mo agoUserbackNew Feature: Capture Feedback Directly from Slack
Frequently asked questions
What is the difference between Authelia and Userback?
They serve adjacent needs but don't currently overlap on shipped themes. Authelia 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 Authelia better than Userback?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Authelia 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 Infra & APIs products to evaluate alongside.
What are the best alternatives to Authelia?
Top Authelia alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Authelia alternatives" section above for the current picks, or visit /alternatives/authelia for the full list with editorial commentary on each.
What are the best alternatives to Userback?
Top Userback alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Userback alternatives" section above for the current picks, or visit /alternatives/userback for the full list with editorial commentary on each.