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Finance · Web app · Next.js

PocketBudget Lab

A collection of free simulators for calculating payments, comparing loans, estimating fixed-term deposits and organizing debt.

PocketBudget Lab illustration showing its four financial tools

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PocketBudget Lab illustration showing its four financial tools

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CategoryFinance · Web app · Next.js
StatusPortfolio preview · public landing paused
My contributionProduct design and web development with Next.js, TypeScript and financial tools in English and Spanish.

The challenge

Advertised rates do not always show the full cost. The website helps people explore scenarios and estimates before making a financial decision.

The approach

I built separate tools for comparing loans, calculating total costs, estimating returns and reviewing debt payoff options. The mobile app handles everyday budgeting; Lab helps analyze a specific decision and can receive prefilled data from the app.

What I built

  • Loan calculator with estimated APR
  • Offer comparison and fixed-term deposit simulator
  • Debt diagnosis and PDF report export
  • Mobile app links with prefilled parameters