Farafoot

Financial & business software

Software you can take to the auditors.

Farafoot designs and builds financial systems and business software — calculation engines, modernized legacy applications, and the verification to prove every number that comes out of them.

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2,022 client records migrated to the web, verified bit‑for‑bit
318,144 computed values compared against the original — zero differences
1,800+ automated checks gate every single release
25 yrs of shipped software, from firmware to the web

Services

The work sits where money, rules, and software meet.

  1. Financial calculation engines

    Retirement projections, benefits eligibility, insurance costs, compounding schedules. Deterministic engines with the rules written down, the edge cases tested, and the arithmetic reproducible to the last bit.

  2. Legacy modernization

    The desktop program your business actually runs on — VB, .NET, Access, a heroic spreadsheet — rebuilt as a secure web application. Same results, proven, before anything is switched over.

  3. Business software

    The systems that run a firm day to day: client management, reporting, document archives, audit trails, and the automation between them. Built to be operated, backed up, and handed off.

  4. Verification & validation

    Independent re-computation against a golden baseline, byte-level output comparison, structural test coverage — and a written report a reviewer can follow. Proof, not promises.

Work

Recent engagements, with the receipts.

Case study — RetireGov

Federal retirement analysis, from desktop to web

A civil-service benefits advisory firm ran its practice on a decade-old Windows application: thousands of client records, a dense federal-retirement calculation engine, and one PC it all lived on. Farafoot rebuilt it as a secure web application on the firm’s own hosting — same math, to the bit.

Every one of 2,022 client analyses was recomputed and compared byte-for-byte against the original engine: 318,144 values, zero discrepancies. The firm’s agents now work from any browser, behind modern authentication, with role-based access, audit logging, nightly off-site backups, and automated tests gating every deploy.

Bit-exact V&VPHP / MySQLSecurity hardeningLegacy VB.NET

Case study — Thy.Finance

Financial planning tools for everyone — and for the planners

A financial-planning platform pairing more than 25 free consumer calculators with full CFP planning software: Monte Carlo retirement simulation, Roth conversion and Social Security modeling, estate and trust planning. Calculations run locally in the browser, and more than 1,000 automated validation tests stand behind the numbers.

Monte Carlo simulationBrowser-local compute1,000+ validation tests

Visit Thy.Finance →

Approach

The same discipline, whatever the project.

  1. Understand the numbers first

    Read the existing code, the math, and the rules before proposing anything. The evaluation is written down and it’s yours to keep, whoever does the work.

  2. Build with a safety net

    Golden baselines before changes, automated tests on every release, staged deploys with instant rollback. Boring on purpose.

  3. Prove it

    Verification runs with every value compared, change reports before anything ships, and documentation a future maintainer — or an auditor — can follow.

Contact

Tell us about the system you have — or the one you need.