Personal finance web application

My Accountant Buddy

Date

Jul 28, 2023Aug 29, 2025

Role

Frontend Developer

Project type

Personal finance web application

Project code

Built with

SvelteKit
Vite

Working as a software engineer at Voly — a UK fintech company — I regularly encountered financial terminology and calculations that fell outside my engineering background.


Rather than relying on quick lookups or AI assistants for short-term answers, I built this application to deepen my own understanding by pairing an unfamiliar domain (finance) with one I'm fluent in (software development).


The result is a personal finance web app that turns abstract formulas into interactive, visual tools — making each concept easier to internalise through hands-on exploration, such as:

  • How to calculate compounding returns from an interest rate.
  • Discounted Cash Flow (DCF), was something that never quite clicked at first — especially the idea of translating future value into present value. Exploring it interactively helps answer the underlying question: why does the timing of money matter so much?

Gallery

Effective vs. Nominal rates
Compounding interest
Calculated view of compounding interest
Same payment DCF
Different payment DCF
Calculator view
Calculator mobile view

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