The workbook is where you decide your strategy. The sandbox is where you stress-test it. It loads your value metric, pricing model, tiers, and WTP from the workbook so you can move price points, change your customer mix, tweak costs, and watch MRR, gross margin, breakeven, and your viable pricing zone update live.
Decision tree + 3-trait sanity check.
Pick a model, sort features, set tiers.
Costs per tier and a Van Westendorp zone.
Mix, revenue/cost chart, ±% what-if.
Saves to your browser, separate from the workbook. No signup. Haven't run the workbook yet? Start there →