Salon Booth Math, operated by Everitt Ventures LLC, stores your calculations and history locally on your device unless a feature clearly states otherwise; we do not sell personal information or use in-app analytics or targeted advertising, our separate website may use Google Analytics and cookies to understand site usage, Apple or Google may process limited technical and purchase information through their platform services under their own privacy policies, and where applicable you may exercise privacy rights under laws including GDPR and CCPA/CPRA or ask privacy questions by contacting US.