MCarloRisk3DLite vs Econ Core

Drift-diffusion Monte Carlo forecaster from raw asset price data including crypto assets, with bulk backtesting. This Lite version of the app now supports 3D views on iPhones, with hidden control menu to give more space for the graphics. Use + button on upper right of the Monte Carlo tab view to show additional controls. It allows an introduction to these methods without an undue amount of options to avoid confusion. See MCarloRisk3D for iPad and macOS for Full Featured Functionality. The simplified Lite version of the app is also made available on iPad. Instead of time series (traditional charting), the app is based on the statistical properties of daily return data (percent change in asset price per trading day). - examine historical returns distributions for one asset at a time, with distribution metrics computed automatically such as mean return, volatility, skew (bullish/bearish), kurtosis (fat tail metric), and tail ratio (fat tail bias: bullish or bearish) - display returns as a histogram along with these return metrics - generate monte carlo forecast models from empirical (actual) historical returns data, without assuming normality of returns - backtest these models in a single pass bulk backtest - get simple metric report-outs and detailed envelope graphs of forecast results, optionally displayed as a 3D surface for easier understanding This app resamples from empirical daily returns to generate forward-in-time monte carlo paths (random walks). No distribution shape assumptions are needed, works with empirical returns distribution (historical data as-is). This is especially useful for new assets such as crypto or more exotic equities which may not conform to normal or lognormal return assumptions, especially in shorter time periods. Aggregates monte carlo paths into a (price, time, probability) surface. Allows user to slice thru and examine this surface (e.g. price over time versus probability) and visualize the surface in 3D and with shaded contour plots. Allows user to set up bulk backtests by withholding the most recent data and examining the model versus this withheld data. Allows display of a sampling of monte carlo random walk paths before they are aggregated, allowing highlighting of individual paths; for teaching and example purposes. 
Detailed training and examples available online in the Help tab. Raw price data from IEX Exchange or cryptocompare.com

Econ Core brings the U.S. and world economy together in one clean, fast app. Track 157 economic indicators — from GDP, inflation, jobs, and interest rates to the national debt, global markets, and cryptocurrency — sourced from the Federal Reserve, the U.S. Treasury, the World Bank, and more. Browse, search, chart, and actually understand the numbers that shape your money and the world. THE WHOLE ECONOMY, IN ONE PLACE 157 indicators across 16 categories, including: • U.S. macro — GDP, real growth, industrial production, retail sales • Inflation & prices — CPI, Core CPI, PCE, Producer Prices • Jobs & labor — unemployment, payrolls, jobless claims, job openings • Interest rates — Fed funds, Treasury yields, SOFR, the yield curve • Housing — mortgage rates, home prices, housing starts • Markets — S&P 500, Nasdaq, Dow, the VIX, Nikkei 225 • Government & debt — federal debt and deficit, plus the national debt updated to the penny every business day • Money & credit, commodities, consumer spending, and trade • Cryptocurrency — live prices for Bitcoin, Ethereum, Solana, and 15 more • International — GDP growth, inflation, and unemployment for China, Japan, Germany, the UK, India, and Brazil, plus the Euro area and the ECB policy rate Every data source — the U.S. Federal Reserve (FRED), the U.S. Treasury, the World Bank, Eurostat/ECB/IMF (via DBnomics), and CoinGecko — is clearly credited in the app. INTERACTIVE CHARTS WITH REAL CONTEXT • Tap anywhere on a chart to drop a crosshair and see the exact value, date, trend, and how that value ranks against the indicator's own history. • U.S. recessions shaded right on the timeline (official NBER dates). • Political-era context: bars beneath each chart show which party controlled the Presidency, the Senate, and the House over the period you're viewing. • Per-range stats: latest, average, minimum, maximum, standard deviation, and data points. Quick ranges from one year to full history. FIND ANYTHING, FAST • Search names, categories, and full plain-language definitions. • Typo-tolerant — "inflaton" still finds Inflation, "crud oil" finds Crude Oil. MAKE IT YOURS • Reorder your dashboard and show or hide any indicator; your setup is saved and survives updates. Reset to defaults anytime. • Every row shows the latest value and its change over the past year at a glance. • On iPad, browse the list and a full chart side by side, with a one-year sparkline on every row. UNDERSTAND EVERY NUMBER • A clear About panel for each indicator: source, units, frequency, and a plain-language definition — plus a view of exactly how much history is available. EXPORT & SHARE • Export any indicator to CSV or a high-resolution chart image — all data, a preset window, or a custom date range — and share it anywhere. BUILT WITH CARE • Privacy-first: no account, no ads, no tracking, no third-party analytics. Your customizations stay on your device, and the app only downloads public data — nothing about you is ever uploaded. • Full VoiceOver support, including spoken values and charts described as text, Dynamic Type, and color cues always paired with shapes. • Looks great in light and dark mode, with subtle haptic feedback on iPhone. • Efficient, battery- and data-friendly updates that refresh only when new data is actually available. Econ Core is for anyone who wants to understand the economy — investors, students, journalists, and the simply curious. No account, no clutter — just the data.