PesoShield

In Argentina, inflation isn’t an abstraction; it’s a monthly tax on anyone holding pesos. But its compounding effect is genuinely hard to feel: prices move unevenly, exchange rates diverge, and by the time the erosion is obvious, the savings are gone. Most tools assume financial literacy that most families were never given.

Ordinary savers, not traders. People deciding whether to hold pesos, buy dollars, or move into indexed assets, who want to understand the trade-offs in plain language before they decide.

I built PesoShield for my grandparents in Argentina. After years of high inflation, they needed a way to track their pensions and see whether the money arriving each month still covered what it used to. The app lets them monitor their pension against inflation, check that they’re still receiving what they need, and ask for help through its WhatsApp tool when something looks off. What started as a tool for two people became a product.

The app models key macroeconomic indicators (CPI and the ARS/USD exchange rate among them) and turns them into scenarios: what happens to a fixed amount of savings over time under different assumptions, and how alternatives like USD hedging or inflation-indexed assets compare over a ten-year horizon.

The design principle: every number on screen should map to a decision someone is actually facing. No jargon, no dashboards for their own sake.

In active development, used by an early circle of family and friends in Argentina whose questions drive the roadmap.

Economic data in Argentina is messy and politically fraught; sourcing and normalizing it honestly was half the work. The bigger lesson was about trust: a tool about people’s savings has to be relentlessly clear about what it knows, what it assumes, and what it can’t predict.

Broader scenario coverage, better mobile ergonomics, and opening it up beyond the initial circle.

The live app is at pesoshield.vercel.app.