I'm a recently retired solo founder who built this because every retirement planning tool I tried wanted my bank credentials or was trying to sell me financial products. planwithclarity.app runs entirely in your browser — your data stays on your device by default. No account needed to start planning. Built with React as a single-file app, deployed on Netlify. AI plan analysis powered by Claude. Features include Monte Carlo simulation with historical backtesting (1928-2025), withdrawal strategy optimizer with progressive tax brackets, estate planning with Die With Zero analysis, Sankey cashflow visualization, and 12 financial calculators. Free tier available. Premium is $9.99/mo. Happy to answer any questions about the architecture or the retirement planning methodology.