Case 02 · App Design & Development

Simple Finance

CROOMA's own personal finance app: expenses, income and investments in one place, running 100% on the device — no account, no server, no financial data leaving your control.

// services →: UI/UX Design, Development (Web, Windows, Android, iOS)
// year →: 2026
// place →: Brazil - RJ
// tag →: App Design & Development

About the project.

We designed and built Simple Finance from end to end. Smart recurrence handles fixed bills and installments, charts show the period's evolution and spending by category, and a privacy mode hides every value with one tap. Light and dark themes, 3 languages, 4 currencies and full JSON/CSV backup — and the same React code runs natively on Windows, Android and iOS.

Live demo

Try it right here

This is the real app — the same one that runs on Windows, Android and iOS — working inside the page. Tap around: your data stays only in your browser.

Open full demo View on GitHub

// screens

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