Free
0€/mo
500k rows
Try it for real, not a sandbox.
- 1 database
- 3-day version history
- Fair use up to 250 MB
- EU-hosted, TLS
- verify() + AS OF
Pricing
The engine is free and open. Cloud is the managed product — hosted in Europe, sovereign by construction, priced by how many rows you keep.
Arkeion Cloud
Managed databases, run for you in the EU. Priced by rows, not gigabytes — Arkeion stores a row in about 35 bytes, so counting rows is the honest unit and it shows you what the compactness buys.
Indie
6€/mo
5M rows
One app, one project. Yours.
- 1 database
- 7-day version history
- Fair use up to 2 GB
- Signable DPA, GDPR-ready
- BYOK encryption (your key)
- EU-hosted, TLS
Pro
29€/mo
25M rows
Real production, or multi-tenant.
- 5 databases
- 14-day version history
- Fair use up to 10 GB
- Everything in Indie
- Priority compute
Scale
79€/mo
100M rows
Data at scale: events, logs, big catalogs.
- 15 databases
- 1-month version history
- Fair use up to 40 GB
- Everything in Pro
- Priority support
- More dedicated CPU
Business
149€/mo
250M rows
Coming off something older, at company scale.
- 30 databases
- 3-month version history
- Fair use up to 100 GB
- Everything in Scale
- Assisted migration — one per subscription
- Verified source: SQLite, Postgres, MySQL
Not on sale yet — join the list and we will write to you when it opens.
Enterprise
Custom
Dedicated
Dedicated or sovereign. No ceiling.
- Dedicated node
- Custom rows, databases and history
- Self-host, or Sovereign enclave
- SEV-SNP — “we cannot read it”
- Migration from Oracle, SQL Server or mainframe (EBCDIC + COBOL copybook), scoped per project
- SLA + named support
Cloud for AI & Vector
Vector search and RAG are bound by index RAM and CPU rather than disk, so they belong on their own track — priced by vectors and compute, not by rows.
In preparation. Plans for vector and AI workloads are not published yet — the engine already ships vector search, and the prices will appear here once they are set.
Sovereign by construction
Not a policy page — a design. Every plan is European, encrypted and auditable. The higher you go, the less you have to trust us.
EU-hostedOVH, French jurisdiction. Your data never leaves Europe.
Your key (BYOK)Encrypted at rest with a key we never store. Offline, it's unreadable without you.
DPA + GDPR-readySignable data-processing agreement on every paid plan. Per-tenant isolation.
Provable historyverify() + hash-chained commits + AS OF. Tamper-evident by construction.
Your data is a fileExport it, self-host it, walk away. No lock-in — the engine is open.
Consent-gated accessOn every plan, free included: break-glass needs your approval, and every access is written to an audit you verify.
Managed “We don't access your data.” EU + your key + isolation + a provable audit trail.
Self-host / Sovereign “We can't.” Run it yourself, or on a confidential enclave (SEV-SNP): the queries run in CPU-encrypted memory we cannot read — proven by attestation.
Where this is going
We don't want to stay a managed-access cloud. The roadmap is a cloud we cannot read — where you don't have to trust that we don't.
- Now Managed, EU — “we don't access” Per-tenant isolation, TLS, BYOK encryption at rest with your key, verify() audit.
- Next Consent-gated, provable access Break-glass needs your approval; every operator access is written to a tamper-evident log you verify.
- Then Sovereign enclave — “we can't” Confidential compute (SEV-SNP, EU bare-metal): your queries run in CPU-encrypted memory, proven by attestation. Not even root can read it.
- Goal Confidential by default The managed-access model retired. You shouldn't have to trust us — the math should.
Prices exclude VAT (added at checkout per your country). Pay monthly, or annually and get two months free. Cancel anytime. Not sure? The engine is free — try it locally first.