About FinwiseApp
Learn about FinwiseApp — free financial calculator platform for Portugal, Brazil, Spain and the world.
What is FinwiseApp?
FinwiseApp is a free financial calculator and simulator platform, built to help everyone make better financial decisions. From calculating net salary after taxes to simulating mortgage payments or planning long-term savings — all tools are available for free, with no registration, directly in the browser. All calculators are built using official tax tables and standard financial formulas, and are regularly updated to reflect current rates and regulations. In 2026, the platform offers over 30 financial tools for Portugal, Brazil, Spain, and the global market.
Our mission
Financial literacy is key to economic independence, yet quality financial tools are often expensive or difficult to use. FinwiseApp's mission is simple: make financial calculations accessible to everyone, for free, clearly, and transparently. We believe everyone should be able to calculate their net salary, simulate a mortgage payment, or understand how much they pay in taxes — without needing a financial advisor or a paid subscription.
Available tools
FinwiseApp offers calculators organized by category: Salary & Taxes — Net salary calculators for Portugal (IRS 2026), Brazil (INSS + IRRF), and Spain (IRPF), plus severance and termination payment calculators. Loans & Mortgages — Loan and mortgage simulator with full amortization schedule and Euribor + spread scenario table. Savings & Investments — Compound interest calculator, savings goal planner, and ROI calculator with annualized CAGR. Crypto — Leveraged crypto position calculator with liquidation price and risk/reward ratio.
Privacy and data
All calculations are performed directly in your browser (client-side), without sending any data to external servers. FinwiseApp does not collect, store, or share personal or financial information. We use Google Analytics for anonymous usage statistics and Google AdSense for contextual advertising, which allows us to keep the service completely free.