Financial models that outlive spreadsheets
Your pricing model shouldn't live in a spreadsheet one person understands. Collaborative, auditable, built to last.
Your financial model is a liability
Single-point-of-failure spreadsheets
Your most critical business logic — pricing models, profitability projections, break-even analysis — lives in a spreadsheet that one person built and one person understands. When they're on vacation, nobody touches it. When it breaks, nobody knows why. That's not a financial tool — it's a risk.
No scenario comparison
You can't model two product lines side by side, test different channel allocations, or show an investor how partner capital changes the ROI — not without duplicating tabs, breaking formulas, and praying the references hold. The data you need for real decisions is trapped in static cells.
Manual investor reporting
Every board meeting means hours of copy-pasting numbers into slides. No live views, no shareable dashboards, no way for a partner to check the model without calling you. What should be an automated pipeline is a manual ritual.
From spreadsheet to platform
Financial audit
I map your actual financial logic — cost structures, pricing channels, margin calculations, reporting requirements. Not a generic discovery: a line-by-line understanding of the model your business runs on.
Engine design
I design the calculation engine, data schema, and KPI definitions. Pure functions that compute your metrics deterministically — testable, auditable, version-controlled. You validate the architecture before code is written.
Build
Production development with weekly working demos. You see real calculations with real numbers each week — not mockups. Multi-currency, scenario comparison, and role-based access are built in from the start.
Deploy & iterate
Ship to your team, generate your first investor report, iterate. Auto-save, cloud persistence, and shareable links mean your financial model is always live and always accessible.
A real business plan, running
Unit costs, per-channel revenue, gross and net margins, break-even point, partner-specific ROI, founder capital requirements — all computed in real time from a single custom model definition. A real calculation engine — deterministic, testable, and always up to date.
Each channel — direct, early bird, preorder, retail, partners, losses — has its own pricing, commission structure, and allocation presets. Smart distribution rules auto-balance production quantities across channels.
Not a demo or a prototype. Used to model actual product collections — 600 units across multiple distribution channels, targeting real revenue and profit objectives over a four-year strategic plan. Read how it was built.
50+ KPIs, one engine
- Component-level cost modeling with multi-currency support (CHF/EUR) and smart channel allocation presets
- Shareable investor reports via unique links — no login required, print-optimised, updated in real time
- Multi-model comparison with drag-and-drop reordering for side-by-side scenario analysis
Engineered for precision
Common questions
How is a custom financial tool different from Excel or Google Sheets?
Spreadsheets are general-purpose — you build everything from scratch, formulas are fragile, and there's no access control, audit trail, or collaboration model. A custom financial tool encodes your specific business logic into a real calculation engine with deterministic outputs, role-based permissions, auto-save, and shareable reports. The formulas don't break because they're tested code, not cell references.
Can multiple team members use it simultaneously?
Yes. The platform supports role-based access with four permission levels — owner, admin, editor, and viewer. Each role sees the same data but has different capabilities. Cloud persistence means everyone works from the current model state, and auto-save prevents lost work.
How do you handle multi-currency financial models?
Multi-currency support is built into the calculation engine from the ground up — not bolted on as a conversion layer. In the watchmaker platform, CHF and EUR are natively supported throughout the entire calculation chain, from component costs to channel-level revenue to investor reports.
What about migrating our existing financial data?
Migration paths from spreadsheets and legacy tools are part of the discovery phase. I map your existing model structure, identify the business logic worth preserving, and design the data schema to accommodate it. The same approach applies to migrating from manual research processes, outgrowing existing automation tools, or connecting to legacy software without API access.
What does a custom financial modeling tool cost?
A focused financial tool — calculator, scenario comparison, shareable reports — typically takes 3-4 months to build. It's a capital investment, not a subscription: you own the code, there are no per-seat fees, and the codebase uses standard tools (Next.js, PostgreSQL, TypeScript) that any senior engineer can maintain. Most clients see ROI within a year through eliminated licensing costs, faster data-driven decisions, and automated reporting.
Ready to move beyond Excel?
Let's talk about turning your spreadsheet logic into a real tool.