GravityKit
GravityKit folds every GravityView extension into one Pro plugin.
Comparison · Infra & APIs
Skipper vs Prowler
A side-by-side editorial comparison of Skipper and Prowler — release velocity, themes, recent moves, and the top alternatives to consider.
Skipper vs Prowler: at a glance
What is Skipper?
Skipper fixes a 304 path that could drop active routes after an interrupted download.
Skipper, Zalando's HTTP router and Kubernetes ingress, tagged a dozen releases in early November, most of them security fixes in how filters see the request path. v0.28.72 and v0.28.74 made the oidcClaimsQuery and OPA filters check the normalized path. v0.28.76 on November 12 fixes a route-loading bug: an interrupted route download could save an incomplete cache with a new ETag, and a 304 reply then removed routes that were active.
What is Prowler?
Prowler 5.49 asks a new question after each scan: which of your servers run an image under attack?
Prowler ships a minor release every one to two weeks. 5.48 added Realtime for AWS, which checks resources as CloudTrail events arrive and can alert, open a Terraform pull request or fix the resource. 5.49 adds emerging threat signatures: a vulnerability described as data, matched against the machine images of every compute instance on AWS, Azure and Google Cloud, with Amazon Inspector clearing hosts patched in place. Prowler Cloud supplies a threat catalog and turns each threat into an Exploitability issue per account.
Skipper vs Prowler: editorial side-by-side
Skipper
5.0INFRA · APIS
Skipper fixes a 304 path that could drop active routes after an interrupted download.
◆ Current state
Skipper, Zalando's HTTP router and Kubernetes ingress, tagged a dozen releases in early November, most of them security fixes in how filters see the request path. v0.28.72 and v0.28.74 made the oidcClaimsQuery and OPA filters check the normalized path. v0.28.76 on November 12 fixes a route-loading bug: an interrupted route download could save an incomplete cache with a new ETag, and a 304 reply then removed routes that were active.
◆ Where it's heading
After the auth-filter fixes, the work has moved to the route data client, where a partial download combined with ETag caching could take routes out of service. The project is in a hardening phase across both request handling and configuration loading.
◆ Prediction
Expect further v0.28.x tags fixing edge cases in route loading and filters; the entries show no feature work queued.
Prowler
7.5INFRA · APIS
Prowler 5.49 asks a new question after each scan: which of your servers run an image under attack?
◆ Current state
Prowler ships a minor release every one to two weeks. 5.48 added Realtime for AWS, which checks resources as CloudTrail events arrive and can alert, open a Terraform pull request or fix the resource. 5.49 adds emerging threat signatures: a vulnerability described as data, matched against the machine images of every compute instance on AWS, Azure and Google Cloud, with Amazon Inspector clearing hosts patched in place. Prowler Cloud supplies a threat catalog and turns each threat into an Exploitability issue per account.
◆ Where it's heading
Prowler is moving from configuration checks toward telling teams what is actually exploitable now: Realtime cut the wait for detection, and threat signatures cut the wait for a new check when a vulnerability lands. The free engine keeps the mechanism, while the maintained catalog and issue triage sit in Prowler Cloud.
◆ Prediction
Expect the threat catalog to grow and exploitability issues to reach more providers or link into Realtime alerts in the next releases.
Alternatives to Skipper and Prowler
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 Skipper or Prowler.
Payload CMS
Payload's v4 beta.9 keeps every past image crop and raises the Node floor again.
Nautobot
Nautobot 3.3 alpha 2 adds test helpers and a cable location filter after 3.2.9's token-leak fix.
Clair
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
Shuffle
Shuffle tags builds almost daily, but the notes are empty.
KrakenD
KrakenD's community edition is shipping only dependency bumps.
See all Skipper alternatives → · See all Prowler alternatives →
Recent activity from Skipper and Prowler
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoSkipperv0.28.76: interrupted route download no longer drops live routes
- 1d agoProwlerProwler 5.49 matches cloud instances against threat signatures ⚡
- 4d agoSkipperv0.28.75: switch PR labeler to pull_request trigger
- 4d agoSkipperv0.28.74: OPA filters now check the normalized path
- 4d agoSkipperv0.28.73: auto-label change-freeze PRs
- 4d agoSkipperv0.28.72: oidcClaimsQuery evaluates the cleaned path
- 7d agoSkipperv0.28.71: per-application proxy logs via annotate
- 7d agoProwlerProwler 5.48: Realtime AWS detection and auto-remediation ⚡
- 15d agoProwlerProwler 5.47: one-step provider setup, Issues verdicts explained
- 18d agoProwlerProwler 5.46 adds Issues view and Bedrock/Vertex AI checks
- 1mo agoProwlerProwler 5.45 adds Azure AI Services and Entra ID checks
- 1mo agoProwlerProwler 5.44.0
Frequently asked questions
What is the difference between Skipper and Prowler?
They serve adjacent needs but don't currently overlap on shipped themes. Prowler 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 Skipper better than Prowler?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Prowler 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 Infra & APIs products to evaluate alongside.
What are the best alternatives to Skipper?
Top Skipper alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Skipper alternatives" section above for the current picks, or visit /alternatives/skipper for the full list with editorial commentary on each.
What are the best alternatives to Prowler?
Top Prowler alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Prowler alternatives" section above for the current picks, or visit /alternatives/prowler for the full list with editorial commentary on each.