Software that keeps its secrets, even from quantum computers.
Prequant is an independent software studio. We don’t hand off at the demo: we design, build, deploy and operate complete products — secure messengers, web platforms, payment systems, AI pipelines — on servers we run ourselves, with post-quantum encryption as the default.
A complete secure messenger, built from zero.
Lemniscate is an end-to-end encrypted messenger with calls, webinars and a creator economy — designed, developed and operated end to end by the team behind Prequant. It is the proof of what we can build for you.
- ⬢True end-to-end encryptionMessages, media and calls — hybrid ECDH + ML-KEM key exchange, so recorded traffic can’t be decrypted later.
- ⬢Calls, webinars & live eventsEncrypted voice and video, group webinars and pay-per-view events with built-in ticketing.
- ⬢Creator economy built inSubscriptions, channels, gifts and post boosts — creators keep 75% of every sale.
- ⬢Integrated coin walletIn-app currency with PIN protection, escrow for gifts and swaps to premium features.
- ⬢Private by designSign-up with e-mail only — no phone number required. Runs exclusively on our own EU and US servers.
- ⬢iOS, Android & WebPublished in the App Store and on Google Play, with signed over-the-air updates in between releases.
Try it: lemniscate.network
One team, the whole stack.
Everything below is work we actually do in production — not a brochure list.
Secure communication systems
White-label messengers and realtime platforms with post-quantum E2E crypto.
- WebRTC voice & video, TURN infrastructure
- Group chats, channels, presence
- Hybrid ECDH + ML-KEM handshakes
- Signed OTA update pipelines
Web platforms & e-commerce
Complete platforms from first schema to checkout.
- Shops, subscriptions, digital goods
- Card payments (Stripe) & crypto payments with on-chain verification (Ethereum, Polygon, BNB)
- Partner & multi-level affiliate systems with payouts
- Admin backoffices, KYC flows, invoicing
AI & automation
AI that ships output inside your business, not demos.
- LLM agents & support chatbots
- Content engines with human approval workflows
- AI SEO: structured data, llms.txt, auto-indexing
- Audio & media pipelines
Mobile apps & stores
From codebase to a live listing users can install.
- iOS & Android builds and releases
- App Store / Play compliance (payments, review)
- Over-the-air update systems
- Push, deep links, store assets
Infrastructure & operations
We run what we build — on hardened Linux we control.
- Self-hosted mail (DKIM, DMARC, MTA-STS, deliverability)
- Docker, nginx, PostgreSQL, zero-downtime deploys
- DDoS/WAF, fail2ban, rate-limiting, audits
- Encrypted backups, monitoring, alerting
Realtime data & finance-grade systems
Systems where every row has to add up.
- Live websocket feeds & charting (candles, order books)
- Wallet & ledger systems with reconciliation
- 2FA flows, withdrawal protection, fraud guards
- High-volume background job pipelines
Paranoid by profession.
Harvest now, decrypt later is already happening.
“If your data must still be private in ten years, it has to be protected today.”
Encrypted traffic is being recorded right now, to be decrypted the day quantum computers are strong enough. Classical encryption alone cannot survive that day — lattice-based post-quantum cryptography can. That is why everything we ship is protected in advance: pre-quantum.
Talk directly to the engineers.
[email protected]No sales layer, no ticket queue — your mail lands on the desk that writes the code.
PGP available on request · replies within one business day.