Rail Core (BYOL)
£999 one-time (Founders Lifetime)
Includes
- rail + verifier + proof artifacts
- BYOL mappings
- Windows-only
Evidence-first software distribution with deterministic artifacts and local verification.
Founders Cohort: 50 seats or 60 days (whichever comes first). Prices increase after cohort.
£999 one-time (Founders Lifetime)
Includes
£2,950 / year
Includes
March–April bonus: any Duo includes one additional library of your choice (one-time claim via email).
Need a tailored subset or a bespoke library variant? Email us — we can ship a versioned library pack.
£2,950 / year
Includes
March–April bonus: any Duo includes one additional library of your choice (one-time claim via email).
Need a tailored subset or a bespoke library variant? Email us — we can ship a versioned library pack.
£2,450 / year
Includes
March–April bonus: any Duo includes one additional library of your choice (one-time claim via email).
Need a tailored subset or a bespoke library variant? Email us — we can ship a versioned library pack.
£3,950 / year
Founders price: £3,950/yr until 30 Apr 2026. Then £4,950/yr.
Includes
Libraries remain pinned to the baselines below; standards updates are tracked and introduced through versioned releases.
If you want to support independent evidence-first work.
Delivery: self-serve purchase. Download instructions delivered by email. Support: async email-only (24–48h). No calls.