Personal French Teacher AIPowered by Quantum Excellium CoreSingle agent
One lifetime local-first AI agent, no subscription.
Transparent by doctrine
Pricing, stated plainly.
Validated release: v28.3.1 QEC · 147/147 Windows tests.
One payment. A permanent licence for the purchased version. Human reviews may be offered separately and are not included in the standard Lemon software licence. No subscription, no API costs, no meter.
Current commercial catalogue
Alliance Signature, Alliance Prestige and the specialist agents are part of the current commercial catalogue. Checkout links are enabled only when the corresponding Lemon Squeezy product is configured.
Checkout handled by Lemon Squeezy
Storefront & checkout
Select your agent or bundle here, then continue to your Lemon Squeezy checkout. Replace the links below with your final product URLs.
Mastery Signature
Integrated readiness configuration with founder attestation.
Mastery Prestige
Full premium configuration with all included services.
Specialist agents
One specialist room — lifetime · €1,990
Any single agent: Business, Codex Medicus, Sky French or French Gastronomy. Fashion Chic and Artistic French open soon.
What every licence includes
Permanent individual licence (activation limit configured per Lemon variant) · proprietary corpus and professional engine · weakness memory · Quantum Excellium Core local-first, with no paid API or cloud required for training · two expert reviews by the founder · private Ed25519-signed attestation.
À la carte
Additional expert review by the founder: €190. Institutional and multi-seat enquiries: contact us.
PFT Readiness / Mastery Alliance
The integrated configurations
Signature
Mastery Alliance Signature — €3,990
Business, Medicus and Sky united by one persistent error memory: backward planning, targeted traps, progressive stress and final expert assessment.
Prestige
Mastery Alliance Prestige — €5,000
The complete Alliance: every specialist environment united by one progress memory, with scenarios, stress, and expert validation.
The honest comparison
Four weeks of our in-person classes: €3,660.
€915 × 4 weeks — classrooms fully booked year after year. One month, then it's over. A licence is the same standard, for life, with zero recurring cost. Prices rise as published proof accumulates — never before.