Quantum Quote
Professional Invoicing & Tax Compliance Platform
Overview
Cross-platform desktop and mobile invoicing application built with Tauri v2, Svelte 5, and Rust. Features comprehensive quote and invoice management, client CRM, product catalog, expense tracking, and multi-region tax compliance. Native SQLite database with full CRUD operations, real-time PDF generation via high-performance Zig engine, and dashboard analytics for businesses of all sizes.
Features
- Complete quote-to-invoice workflow with status tracking and conversion
- Client relationship management with VAT/NIF validation
- Product/service catalog with pricing and categorization
- Multi-currency expense tracking with receipt management
- Zig-powered PDF generation — high-performance, cross-platform
- Payment tracking with multiple payment method profiles
- Dashboard analytics showing revenue, expenses, and tax summaries
- HMRC Making Tax Digital — Direct VAT submission to UK tax authority
- Spanish VeriFactu compliance — Cryptographic invoice chain with QR codes
- Mobile-first responsive interface
Key Metrics
Desktop + Mobile (Android/iOS)
Built With
Tauri v2 + Svelte 5 + Rust + Zig
Database
SQLite (local-first, privacy-focused)
PDF Engine
Zig high-performance generator
Tax Compliance
UK MTD, Spanish VeriFactu, Standard
Target Market
Freelancers, Sole Traders, SMBs