Compare · where Déjà actually sits
Five categories your team is comparing. One produces signed audit evidence.
When production breaks, the story lands in five places — GitHub, Datadog, a PR, Slack, ServiceNow. None of the tools on this page signs that story.
Most teams compare Déjà to incident-management tools or wikis — the wrong category. And your GRC platform isn't a rival either: it's where receipts land. Déjà is the evidence layer underneath — three categories get mistaken for it, one works with it, none of them does what it does.
How the engine works lives on How it works — this page only compares.
The category map
Most teams compare us to the wrong category.
Each category below was built for a different primary job. Before a feature-level comparison, get the category right — two of these are tools we integrate with; one is a job-to-be-done the wiki has held by default.
Mistaken for · three categories that produce narration
Postmortem platforms
Built to document what happened: timelines, follow-ups, track action items. Prose documents for humans — not signed evidence primitives. Auditors can't verify them offline.
Paging & response
Built to route alerts to on-call engineers and analyze operational patterns. Optimized for response coordination — not causal attribution or audit-grade evidence. Déjà sits behind paging, not in front of it.
Wikis & documents
The status quo. Engineers write postmortems in wiki pages. Nothing is structured, signed, or queryable — reassembling it manually at audit time typically costs weeks of senior labor per cycle.
Works with · the category we complete
GRC & compliance automation
Built to manage your compliance program — control mapping, audit workflow, evidence collection across many controls. We don't replace your GRC platform. We make its incident-evidence chain cryptographic. Déjà sits underneath as a signed evidence source for the incident-response portion of your program: same audit cycle, different layers — receipts feed in via the evidence API.
Is · evidence custody infrastructure
Déjà
Built to produce cryptographically signed, audit-defensible receipts at the moment of causal attribution — scoped to SOC 2 Type II, ISO 27001, NYDFS Part 500, DORA, and SR 11-7. Verifiable offline by your audit firm via the open dsr-verifier-cli — no Déjà account required (early access today · public release Q3 2026; audit firms receive the verifier during engagement). Evidence is the primary output. Postmortems and alerts are secondary.
Capability comparison
Side by side, by capability.
| Capability | FireHydrant | incident.io | PagerDuty + Jeli | Confluence / Notion | Déjà |
|---|---|---|---|---|---|
Deterministic causal attribution Identifies the causal PR that introduced the failure — not just where the error occurred | — | — | Timeline only | — | ✓ |
Cryptographically signed evidence Ed25519-signed receipts, tamper-evident chain of custody | — | — | — | — | ✓ |
Cross-service root cause, no trace ID required Attribution across service boundaries without distributed-tracing infrastructure | — | — | No structured deduction | — | Via the engine |
Audit-ready structured output SOC 2 Type II / ISO 27001 / NYDFS 500 / DORA / SR 11-7-scoped artifacts, not prose | Postmortem PDF | Postmortem PDF | Postmortem PDF | Wiki export | Structured receipts |
Offline verifiability Auditor or regulator can verify receipts without accessing the vendor — open-source CLI | — | — | — | — | ✓ · open CLI |
First-occurrence + recurrence attribution Remembers every prior incident; detects when a known failure pattern repeats | Similar-incident lookup | Similar-incident lookup | — | — | ✓ · chained R2-R |
Time to attribution How long from incident signal to a definitive answer on what caused it | Manual triage | Manual triage | Hours to days | Hours to days | < 60s |
Pricing model How the bill scales with your team — what determines annual cost | Per seat | Per seat | Per seat + events | Per seat | By scope |
Independent of the producer Does the evidence survive — and verify — without trusting the platform that made it? | Requires trust | Requires trust | Requires trust | Requires trust | Verifies forever · offline |
Factual statements only — no subjective claims about UX, speed of competitors, or team quality. Accurate as of June 2026; tell us if anything here is out of date and we'll correct it.
Why Drata and Vanta aren't columns: they're not alternatives — they're the destination. Receipts feed your GRC platform; comparing against it would be comparing the pipe to the tank.
When Déjà isn't the right choice
Three cases where we'd tell you to use something else.
Déjà is built for a specific job — audit evidence and deterministic attribution. If that isn't your primary need, one of the alternatives above is probably the better fit.
● Case 1
Your team is a 10-person startup with no compliance pressure.
If you're not facing SOC 2, ISO 27001, HIPAA, or regulatory evidence requirements, you don't need Déjà yet. Run postmortems in a wiki, use paging for on-call. Revisit when your audit calendar is real — which, in fintech, is usually 18–24 months before you think.
Better fit: Confluence + PagerDuty
● Case 2
Your primary need is real-time alert routing.
Déjà isn't a paging tool. If your on-call workflow is "signal fires → engineer gets paged → incident is declared," and that's your core problem, keep your existing alerting. Déjà sits behind paging, not in front of it — PagerDuty handles the page; Déjà handles the attribution and the receipt.
Better fit: PagerDuty + Déjà
● Case 3
You want AI-assisted postmortem authoring.
If your team's bottleneck is writing postmortems — prose synthesis, timeline construction, action-item tracking — incident-management tools handle that flow natively. We produce structured receipts; they produce prose documents. Many teams run both.
Better fit: incident.io + Déjà
What your team gets
Three outcomes, one mechanism.
Audit evidence on tap — every incident produces a signed receipt, scoped to your frameworks, verifiable offline by your audit firm. The full argument lives on Why Déjà.
Why Déjà →Audit-prep cost recovery — we won't assert your ROI here. The pricing page has a live calculator: plug in your loaded cost, cycles, and team, and the math runs on your numbers, formula shown.
Run your numbers →Fewer repeat incidents — attribution in seconds without trace IDs, prior resolutions surfaced automatically, receipts delivered where they already work. Mechanism on How it works.
How it works →Want the mechanism or the deeper argument? The deterministic engine, the eight-signal CCS, and the receipt lifecycle live on How it works; the validation gates, economics, and category claim live on Why Déjà. This page's only job was the comparison.
How it works →Why Déjà →Your team doesn't need a tool. It needs evidence.
The alternatives produce prose documents, alert routing, and timeline reconstructions. Déjà produces cryptographically verifiable, signed receipts — with offline verification built in from day one.
14-day trial · no card required · your 14 days begin at your first signed receipt