Viable Fit - Measure and improve your product market fit
Product Fit - Measure product/market fit in app with your users.
Product Market Fit Toolkit - Measure your product-market fit using data you already have
OpinionX - Stack rank people's priorities in minutes with OpinionX's free ranking surveys.
Dictionary Domains - Unregistered dictionary word domains for your side project
Focus Framework - A hands on guide to find product-market fit w/ lean methods