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Comparison · Infra & APIs

Fission vs Retool

A side-by-side editorial comparison of Fission and Retool — release velocity, themes, recent moves, and the top alternatives to consider.

Fission vs Retool: at a glance

FeatureFissionRetool
SectorInfra & APIsInfra & APIs
Velocity score0.06.3
Sparks · 30d00
Top themesserverless, kubernetes, faas, release-candidatesinternal tools, app builder, workflows, governance
Last editorial update3mo ago9h ago
WebsiteVisit →Visit →

What is Fission?

Fission's release feed carries only RC tags, and none of them say what shipped

Every entry here is a release candidate — v1.22.0-rc1 and rc2, v1.23.0-rc1, v1.25.0-rc1 — with no final release appearing between them, and the version sequence skips 1.24 entirely. The bodies are whatever the tagging commit said, so what reaches this feed is a dependabot bump, a CLI tool-version refresh, a codegen sync explicitly labelled as having no functional change, and one entry that is nothing but links to an external release-highlights page. The actual release notes live on the project's documentation site, not here.

Read the full Fission trajectory →

What is Retool?

Retool gives workflows their own run identity and sells self-hosted through Google Cloud.

Retool's first November week was about running and buying Retool in production. Workflows can now run as a chosen permission group, so scheduled and webhook-triggered runs no longer borrow a person's access. Self-hosted Enterprise can be deployed to GKE and billed through Google Cloud Marketplace, Microsoft SQL integration versions 1.0 and 2.0 were removed, and 4.88 reached the Edge channel. App testing entered public beta on November 3.

Read the full Retool trajectory →

Fission vs Retool: editorial side-by-side

F
Fission
INFRA · APIS
0.0

Fission's release feed carries only RC tags, and none of them say what shipped

◆ Current state

Every entry here is a release candidate — v1.22.0-rc1 and rc2, v1.23.0-rc1, v1.25.0-rc1 — with no final release appearing between them, and the version sequence skips 1.24 entirely. The bodies are whatever the tagging commit said, so what reaches this feed is a dependabot bump, a CLI tool-version refresh, a codegen sync explicitly labelled as having no functional change, and one entry that is nothing but links to an external release-highlights page. The actual release notes live on the project's documentation site, not here.

◆ Where it's heading

What can be read from these tags is infrastructure maintenance rather than product direction: Go dependency updates, helm and kind and skaffold and cosign version refreshes, and regenerated swagger and applyconfiguration files kept in sync with CEL and webhook validation comments in the core API types. That last one is the only entry hinting at anything structural — CEL-based validation on the API types implies declarative validation moving into the CRDs — but the commit itself changes only generated output.

◆ Prediction

This feed does not carry enough to predict product direction; until final releases or their notes appear here rather than only candidate tags, any read of where Fission is heading would be guesswork.

R
Retool
INFRA · APIS
6.3

Retool gives workflows their own run identity and sells self-hosted through Google Cloud.

◆ Current state

Retool's first November week was about running and buying Retool in production. Workflows can now run as a chosen permission group, so scheduled and webhook-triggered runs no longer borrow a person's access. Self-hosted Enterprise can be deployed to GKE and billed through Google Cloud Marketplace, Microsoft SQL integration versions 1.0 and 2.0 were removed, and 4.88 reached the Edge channel. App testing entered public beta on November 3.

◆ Where it's heading

After the late-October app builder GA, Retool is filling in governance and operations: testing for generated apps, AI spend controls, service identities for automation and procurement through a cloud marketplace. Older integration versions are being retired on a schedule.

◆ Prediction

Expect more admin and governance controls around workflows and the app builder, plus further marketplace or self-hosted deployment options.

Alternatives to Fission and Retool

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 Fission or Retool.

See all Fission alternatives → · See all Retool alternatives →

Recent activity from Fission and Retool

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 4d agoRetoolService users for workflows
  2. 5d agoRetoolSelf-hosted Retool 4.34 and 4.0 stable updates
  3. 5d agoRetoolMicrosoft SQL integration versions 1.0 and 2.0 removed
  4. 5d agoRetoolRetool 4.88 Edge for self-hosted instances
  5. 6d agoRetoolApp testing
  6. 6d agoRetoolRetool on Google Cloud Marketplace
  7. 5mo agoFissionFission 1.25.0-rc1 tag carries only regenerated codegen output
  8. 5mo agoFissionFission 1.23.0-rc1 tag carries a CI tool-version refresh
  9. 10mo agoFissionv1.22.0-rc2
  10. 1y agoFissionFission 1.22.0-rc1 tag carries a golang.org/x/net bump

Frequently asked questions

What is the difference between Fission and Retool?

They serve adjacent needs but don't currently overlap on shipped themes. Retool is currently shipping more aggressively (velocity 6.3 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 Fission better than Retool?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Retool is currently shipping more aggressively (velocity 6.3 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 Fission?

Top Fission alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Fission alternatives" section above for the current picks, or visit /alternatives/fission for the full list with editorial commentary on each.

What are the best alternatives to Retool?

Top Retool alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Retool alternatives" section above for the current picks, or visit /alternatives/retool for the full list with editorial commentary on each.