Get a free Van Westendorp Google Sheets template that calculates the four lines, finds the optimal price and acceptable range, and draws the chart.

The Newton-Miller-Smith extension adds two purchase-intent questions to Van Westendorp. How it estimates demand and revenue, with a worked example.

Van Westendorp survey tools compared: OpinionX, Conjointly, SurveyMonkey, Qualtrics, QuestionPro and SurveyKing on features and billing model.

See how Van Westendorp segmentation shows which prices each customer group accepts, using real survey data, and how to turn that into tiered pricing.

Read the Van Westendorp history, from the 1976 ESOMAR paper in Venice to the Newton-Miller-Smith extension, and why the method is still used.

Van Westendorp vs conjoint analysis: when a price range is enough, when you need feature prices, and what each costs in time and participants.

Van Westendorp analysis: what each of the four lines means, how to find the optimal price and acceptable range, and the misreadings to avoid.

Van Westendorp vs Gabor Granger: one measures how prices feel, the other who would buy. Both run on the same product, plus when to use each.

Work out your Van Westendorp sample size with a free calculator, and see the reasoning behind the number from resampling a real pricing survey.

Product concept testing in 4 studies: find what matters, test your USP with conjoint, price it with Van Westendorp, then test real purchases.

Screener questions that reveal the qualifying answer invite lies: 83% in one study. How to hide the target, and how screening out works on OpinionX.

How to run Van Westendorp and Gabor Granger in one survey: what each adds, which goes first, the build steps, and how to combine them into one price.

Gabor Granger tools compared on what changes your data: how the next price is picked, random first prices, prescreeners, segments and billing.

Gabor Granger price search compared: sequential, random and binary search, how many questions each takes, and why the first price matters.

A free Gabor Granger sample size calculator, plus the reasoning: 100 people for a direction, 300 for a confident price, 100 per segment.

Gabor Granger analysis in plain terms: what the two curves mean, which callouts are diagnostics, and why the peak's height is the number to trust least.

How to segment Gabor Granger results, read the split by group, and tell when a gap between groups means two plans instead of one price.

Gabor Granger price points decide your answer before anyone votes. Which fields to set, where a range comes from, and the 10% check that catches a bad one.