Ideas and Feedback? Contact support@scenariofi.app.

Financial Simulator Suite

Interactive financial calculators and simulations for retirement planning, investing, budgeting, and major financial decisions. Model real-world uncertainty, compare scenarios, and visualize possible long-term outcomes.

Choose a tool below.

Retirement & Investing

Portfolio growth, retirement planning, and long-term investment timing tools.

Portfolio Backtester

Backtest one or more weighted portfolios with historical asset prices and compare growth lines and risk metrics.

  • Multiple portfolios on one chart
  • Ticker weights backed by cached price data
  • CAGR, volatility, drawdown, and return metrics
Launch calculator

Retirement Cycle Portfolio Simulator

Project retirement portfolio outcomes with monthly contributions, withdrawals, and changing portfolio assumptions over time.

  • Contributions before retirement
  • Multiple portfolio periods
  • Fixed withdrawal amount or withdrawal rate
  • Ruin probability and percentile charting
Launch calculator

Lump Sum vs DCA

Compare investing all at once against dollar-cost averaging with Monte Carlo return assumptions.

  • Shared market paths for a fair timing comparison
  • Normal or lognormal return models
  • Separate percentile charts for each strategy
Launch calculator

Roth vs Traditional Retirement Account

Compare after-tax Roth and Traditional retirement account outcomes with deterministic return and tax assumptions.

  • Current and withdrawal tax rates
  • Annual contribution and return assumptions
  • After-tax ending value comparison
Launch calculator