Finance tools built on honest math.
Prompting tutorials for the AI age.
No jargon. No Wall Street assumptions. Data-driven tools for people who want to understand their money and use AI intelligently.
Free to start · No account required · Built by a data scientist (MS, CU Boulder)
Built for people who want real answers
Each tool is documented, assumption-transparent, and free to start. No advisor paywall.
FIRE Retirement Simulator
Plan your retirement as if Social Security doesn't exist. Monte Carlo engine with 10,000 simulation paths, historical crisis stress tests, and Roth/IRA guidance.
Options & Futures Scanner
IV rank, unusual flow, Greeks dashboard. Built for active traders who want edge without the Bloomberg terminal price tag.
401k / IRA Portfolio Analyzer
Upload your plan. Find the fee drag. Get a plain-English AI summary of what you're actually holding and what it's costing you.
Understand your money before you invest it
From FIRE fundamentals to Roth vs. Traditional IRA — plain-English guides with no hidden agenda.
Why PromptingLogic?
Most financial tools are built by institutions with something to sell you. PromptingLogic is built by a data scientist who got tired of retirement calculators that assumed everything would go fine.
Background: MS in Data Science from CU Boulder. Two decades in high-stakes operational roles before pivoting to data science and software. I build tools I wish existed — starting with the retirement calculator that defaults to zero Social Security, because the SSA's own 2024 report projects the trust fund runs out around 2033.
Every tool ships with documented methodology, open assumptions, and no financial advisor paywall. The math is explained, not hidden.
From the blog
Methodology posts, investing fundamentals, and AI prompting guides.
Why I built a retirement calculator that assumes Social Security is zero
The sequence of returns problem explained with actual numbers
Roth vs. Traditional: the decision tree that works for most people
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