Competitive landscape by technical decision criteria
This comparison maps where Stella fits in the release stack using architecture and operational dimensions, not category slogans.
Stella tracks a release along one custody spine: Source → Build → Scan → Verdict → Decision → Deploy → Watch. Each stage carries one of three states — Missing, Recorded, or Signed. Missing is a reported state, not a blank.
Technical criteria behind every comparison claim
Market and vendor pages use the same five dimensions so decisions remain comparable across tools.
- - Deployment model: self-hosting posture, target coverage, and runtime assumptions
- - Evidence model: what artifacts are signed, exportable, and independently verifiable
- - Replayability: deterministic re-run support with frozen inputs and matching outputs
- - Offline capability: behavior in disconnected, sovereign, or air-gapped environments
- - Policy model: gate expressiveness, explainability, and promotion workflow integration
Proof and methodology links: Evidence and Audit | Decision Capsule spec | Operations and Deployment
Last reviewed: 2026-07-29 Every competitor cell below cites the page it came from and the date we read it. Where we found no first-party source either way, the cell says so instead of guessing. Vanta and Drata are compliance-automation platforms rather than release tooling — their N/S cells mark a different category, not a hidden gap. Wide tables scroll sideways inside their own frame; the page itself never does. The table opens on a selected set of platforms — choose “All vendors”, or one vendor, to change that. Narrowing the columns removes the scrollbar entirely. Without JavaScript the full eighteen-column table is shown. "Not assessed" is not "not offered". It means this review found no public first-party page either way — Aqua's deployment and identity documentation sits behind a customer login, so those cells stay empty rather than guessed. Methodology: Competitor cells cite public vendor documentation, read on 28–29 July 2026; Stella Ops cells are verified against the product source, not its documentation. No pack on either side makes anyone compliant. Vendor capabilities change — verify with official documentation before deciding. To report an inaccuracy, contact hello@stella-ops.org. Sources for every competitor cell — All pages accessed 28–29 July 2026. These rows are what Stella Ops ships, verified against the product source. Competitor columns are deliberately absent here: every cell we could add would be an unsourced assertion about a third party, and this page does not publish those. What the closest players do cover — with sources — is below the table. * Partial: the 24h/72h/14d incident-reporting deadline state machine runs today with an operator handoff — Stella prepares the report package and the operator submits it. Regulator auto-submission is pending official schemas. † The four profiles are shipped code, with limits stated: GOST and SM verify everywhere, but production signing requires a certified external provider — CryptoPro CSP, a PKCS#11 HSM, or an OSCCA-certified SM HSM — and the host refuses to fall back to ES256 rather than break the sovereignty guarantee. The eIDAS and FIPS profiles are served by the international ECDSA stack today: profile labels, not validated modules. Enabling starts evidence collection in conservative evidence-only mode; it does not claim regulatory compliance. The operator always remains the regulated decision-maker. See per-regulation pack coverage, ownership labels, and known gaps → · Availability and sanctions notice → As of 28–29 July 2026, no reviewed platform documents NIS2, DORA or CRA evidence packs together with regional crypto. Anchore's documented pack table lists seven packs — Secure, NIST, CIS, FedRAMP, DoD, CMMC, ASD Essential 8 — and none is NIS2, DORA or CRA;5 its DORA page is marketing guidance, and a landing page is not a shipped pack.18 No platform in this review documents GOST or SM signing of release evidence; cosign's signature specification, the de-facto toolchain here, requires ECDSA-P256 and names no GOST or SM scheme.22 This was an English-language documentation review: high confidence for Western vendors, moderate globally. Pack libraries change — verify before deciding. For compliance Free tier includes 3 environments and 100 new-digest scans per rolling 24 h.Platform comparison: Stella Ops against seventeen release and security platforms
Decision dimension Stella Ops Anchore Enterprise Aqua Security Kosli Chainloop Octopus Deploy Argo CD Harness GitLab GitHub Jenkins Snyk Trivy Docker Scout JFrog AWS Vanta Drata Deployment and release control Deployment model Stella Ops installs on hardware you control and deploys to Compose, Docker, SSH, WinRM, Ansible, Nomad and ECS targets. The cells that are not a plain Yes are documentation that stops short of a self-hosted install: Kosli is SaaS with on-prem for Enterprise customers per its pricing FAQ, and AWS CodeDeploy reaches on-premises instances while its control plane stays a Region service. Snyk documents regional hosting rather than self-hosting; Docker Scout is reached through Docker Hub, the CLI and its dashboard; Vanta and Drata are hosted platforms. Aqua's deployment pages sit behind a customer login, so that cell is not assessed. Yes Yes1 Not assessed Partial16,17 Yes81,82 Yes26,23 Yes71,70 Yes30 Yes41 Yes47 Yes48 N/S53,51 Yes54,55 N/S75,77 Yes64 Partial68,65 N/S86,88 N/S89,90 Performs the promotion (is the deployment path) Stella's gate and the deployment are one system: the gate runs inside the orchestrator that performs the promotion. Kosli's own documentation settles its cell — it is a flight recorder that “does not control the plane”. JFrog is partial because it promotes a signed Release Bundle between stages, which moves an artifact rather than a deployment. Chainloop, Docker Scout, Vanta and Drata state no deployment capability on the pages we reviewed. Yes N/S2 N/S10 No11 N/S19,82 Yes24,25 Yes70 Yes29 Yes35,40 Yes42 Partial50 N/S51 N/S54 N/S75,80 Partial59 Yes68 N/S86 N/S89 Policy model and gate expressiveness Stella's gate combines function-level reachability, five-state VEX consensus and promotion rules in a single decision, and the verdict it produces is signed and replayable. The partial cells mark control that is not a policy language: Argo CD's sync windows are cron-based allow/deny periods and its RBAC is access control, while Octopus and Jenkins document a human approval step. Snyk, Trivy, AWS, Vanta and Drata do not state a gate policy model on the pages we reviewed. Yes Yes4 Yes10 Yes13 Yes84 Partial28 Partial73,74 Yes31 Yes38 Yes42 Partial50 N/S51 N/S54,56 Yes76 Yes62 N/S65 N/S87 N/S89 Vulnerabilities and prioritisation Container image vulnerability scanning Stella's scanner analyses OS package managers, language ecosystems, native binaries, secrets and cryptography inside the image. Kosli's documented attestation types carry other tools' results rather than producing an analysis of its own, and container image scanning is not stated on the GitHub pages we reviewed — Dependabot there covers dependency manifests. Yes Yes3 Yes9 N/S12 N/S84 N/S25 N/S70 Yes32 Yes36 N/S45,46 N/S50 Yes51 Yes54 Yes75,78 Yes60 Yes67,66 N/S86,87 N/S89 Vulnerability prioritisation, including reachability Stella computes function-level reachability from the deployed binary and emits a hashable proof. The partial cells are related work on a different axis: GitLab shows EPSS and known-exploit flags, Harness deduplicates and prioritises scanner output, Trivy filters with VEX statements, Docker Scout aggregates EPSS and the CISA KEV catalogue and takes VEX exceptions as attestations, and Amazon Inspector adjusts the NVD base score using network reachability — none of these is code reachability. Yes N/S2,3 Yes9 N/S11,12 N/S84 N/S25 N/S70 Partial32 Partial36 N/S45 N/S50 Yes52 Partial56,57 Partial78,79 Yes61 Partial65 N/S86 N/S89 Unknowns tracked as a first-class state Unknown components are a ranked, budgeted state with their own service and proof records, so a gap is carried as a finding rather than dropped. We found no equivalent concept on the pages we reviewed for any of the other seventeen platforms; absence of the term is not proof of absence of the behaviour. Yes N/S2,4 N/S9,10 N/S11,12 N/S83,84 N/S25 N/S70 N/S32,33 N/S36 N/S45 N/S50 N/S52 N/S56 N/S76 N/S61 N/S65 N/S87 N/S89 Evidence, replay and offline Evidence signed and verifiable without the vendor Stella evidence cards are DSSE-signed and verify offline against a local trust root, including Rekor receipts. The partial cells mark signing documented with a limit: Anchore's export formats are documented but signing of those documents is not stated on the page we reviewed; GitLab Runner produces an in-toto SLSA statement whose signing is not stated; AWS Signer signs container images through Notation while managing the key material itself; Kosli documents SHA256-fingerprint identity and audit-package downloads without stating that the package is signed; Chainloop's own signing reference routes verification through the Chainloop CLI and requires the CA chain to be obtained out of band. Argo CD verifies GnuPG-signed Git commits, not evidence it emits itself. Yes Partial6 Yes10 Partial12,14 Partial83,85 N/S25 N/S72 Yes34 Partial39 Yes43,44 N/S50 N/S51 Yes58 N/S79,76 Yes20 Partial69 N/S87 N/S89 Re-runs a past decision from pinned inputs Stella pins the feed snapshot, policy, VEX documents, toolchain and seed, then replays twice and verifies determinism. Anchore documents a different model by design: compliance status stays continuously up to date and re-evaluates when assets, policy or vulnerability data change. No other platform in this review documents re-running a past decision from pinned inputs. Yes N/S8 N/S10 N/S12 N/S83 N/S24,25 N/S70 N/S29,33 N/S35,39 N/S42,43 N/S50 N/S52 N/S55,58 N/S75 N/S59 N/S68,65 N/S87 N/S89 Signed risk delta between two releases (smart-diff) Stella emits a signed delta-verdict between two releases so review effort goes to the material change. Not stated on the pages we reviewed for any of the other seventeen platforms. Yes Partial2 N/S9,10 N/S11,12 N/S83 N/S25 N/S70 N/S33,34 N/S36,39 N/S43 N/S50 N/S51,52 N/S56,58 N/S75,76 N/S20,59 N/S65,69 N/S87 N/S89 Offline and air-gapped operation Stella's sealed mode enforces an egress allow-list in code and refuses startup on a stale offline time anchor. The partial cells cover something narrower than an air-gapped install: Octopus documents an offline package drop for targets it cannot reach rather than an air-gapped server, GitHub documents offline verification of attestations, and Chainloop's platform deployment guide covers relocating Helm charts and images into your own registry while its open-source install guide does not mention offline operation. Docker Scout's data-handling page states that image and SBOM metadata are transmitted to servers in US East and documents no offline mode; Argo CD's installation guide does not cover air-gapped installs; Kosli's documented response to being unreachable is a dry-run mode whose commands skip attestation and exit zero. Aqua's deployment documentation is behind a customer login, so that cell is not assessed. Yes Yes7 Not assessed N/S15,16,17 Partial82,81 Partial27,26 N/S71 Yes30 Yes37 Partial44,47 Yes49 N/S53,51 Yes55 N/S77 Yes63 N/S65,67 N/S88,86 N/S90 Regulatory evidence and sovereign crypto
CRA Annex VII technical documentation export Yes CRA conformity dossier (Module A / B+C / H) Yes NIS2 control register + SoA with completeness gate Yes NIS2 effectiveness KPI telemetry (13 areas) Yes DORA Register of Information export, gated on the pinned official EBA taxonomy Yes DORA TLPT evidence pack (10-year retention) Yes Incident-reporting deadline state machine (24h/72h/14d) Partial* Standards-mapping evidence pack (ISO/IEC 27001, IEC 62443-4-1/-4-2, ETSI EN 303 645) Yes Regulator submission channels, signed and fail-closed (ENISA CRA, NIS2 CSIRT, DORA) Yes Auditor re-verification of an exported bundle without a running instance Yes Offline trusted time anchor with a staleness budget Yes Regulatory evidence retention policy engine Yes Regional crypto profiles ( FIPSFederal Information Processing Standards - U.S. government cryptographic standards for secure systems-aligned, eIDASElectronic IDentification, Authentication and trust Services - EU regulation for electronic signatures and trust services, GOST, SM; HSM PKCS#11)†Yes Multi-profile (dual-stack) signing Yes CBOM analysis and post-quantum readiness assessment Yes EU Trusted List validation and CAdES signature building (eIDAS) Yes SM remote signing service (OSCCA-certified HSM backend) Yes No direct competitor, as of 28–29 July 2026
Head-to-head comparisons