EvidenceVaultEvidenceVault
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Pricing

Flat platform fee. Storage at cost. No markup on growth.

EvidenceVault does not profit from how much evidence you store. Azure storage is billed straight through to your organisation at Microsoft's published per-GB rates — we don't mark it up, and we don't earn more if your archive doubles. You pay a single flat platform fee for the software, the operations, and the security.

Storage

Three tiers. One lifecycle. Pass-through pricing.

Evidence arrives in the Cool tier. If nobody opens it for 30 days it moves to Cold, and after 90 days to Archive — so material you are keeping rather than using costs steadily less to hold, without anyone having to move it. Those two periods are yours to set: change them whenever you like from the settings page, and the new policy applies straight away. Azure runs the lifecycle itself, so there is nothing for your organisation to schedule or remember. Storage charges appear on your invoice exactly as Microsoft bills them, with the line items audited.

Cool
default on ingest · sub-second reads
  • ✓Where every exhibit lands at ingest
  • ✓Directly readable — no retrieval step
  • ✓SHA-256 re-verified in the browser on every download
  • ✓Moves to Cold on the schedule your organisation sets
Cold
online · lower cost per month
  • ✓Mid-life tier for settled cases
  • ✓Still directly readable — no rehydration
  • ✓Same hash and immutability guarantees
  • ✓Moves to Archive on the schedule your organisation sets
Archive
offline · rehydration required
  • ✓Long-tail and legacy evidence
  • ✓Customer-approved retrieval required before access
  • ✓Standard rehydration up to 15 hours, or expedited under an hour at higher cost — the approver chooses, and sees the price
  • ✓Stays here until retention expiry or recall
Pass-through means pass-through. Microsoft publishes per-GB rates per tier. Your invoice quotes the same number. EvidenceVault makes no margin on bytes stored — only on the platform fee. That alignment is deliberate: we have no commercial reason to keep cold-case data on premium storage, and every reason to retire it down the lifecycle the moment it qualifies.
Platform fee

One flat monthly fee. Everything below is included.

The fee is sized to your organisation, not to your data volume. Pricing depends on classification, named-user count, region, and any optional add-ons (DR pairing, Managed HSM upgrade). Get in touch and we'll send a fixed quote as soon as we can.

Included in the platform fee
✓Per-tenant Azure resource group, Storage account, SQL DB, Log Analytics
All under your organisation's tenant ID, never co-mingled.
✓Customer-managed Key Vault Premium with FIPS 140-2 L2 keys
You hold the keys; we cannot decrypt without you.
✓Double encryption (CMK + platform key) and WORM container immutability
Mathematical, not policy-enforced.
✓Hash-chained audit log with on-demand integrity verification
Stage 4.4 SHA-256 chain on dbo.AuditEvents.
✓Three-tier lifecycle policy with automatic promotion
Cool → Cold @ 30 days → Archive @ 90 days.
✓Reason-coded retrieval workflow with Inspector approval + SLA tracking
Every read tied to a case + an approver.
✓Two-plane administration: customer portal + operator console
Cookies, origins and .NET projects all separated.
✓Break-glass workflow with time-boxed, auto-expiring access
Tenant admin approves; access auto-revokes at expiry.
✓Microsoft Sentinel rules + email alerting on the per-tenant workspace
Key disable, decryption volume anomaly, off-hours admin.
✓Tenant admin support during UK business hours
UK-cleared personnel only.
✓Integrity verified at seal and independently re-verified on every download
Server-side SHA-256 at finalize; client-side verify plus copyable manifest on read.
Get a fixed quote
Email customers@evidencevault.uk with your organisation, classification, expected number of users and any optional add-ons. We'll respond as soon as we can with a fixed monthly platform fee and a worked storage estimate at Microsoft's pass-through rates.
Contact us
Pilot pricing: 90 days, three named users, capped at 1 TB across all tiers — no platform fee, no commercial commitment. Your data either migrates to a live tenant at the end of the pilot or is securely destroyed.
Run a 90-day pilot for your organisation.
Dedicated UK-region tenant. Three named users. No commercial commitment.
Request a pilot →