Silver Taza Labs
Free calculators and state-law lookups
Membership prices at US med spas with a calculator for recurring revenue and margin. What bookkeeping firms charge per month and for a cleanup. Stylist take-home under booth rent versus commission. Whether your state pays out unused PTO, when a final paycheck is due, and who may order IV therapy. Each tool is built from compiled data with the sources cited, and each one is free with no signup.
Labs is also where I find out what operators need before building anything bigger. Some tools ask for your own number in exchange for the anonymised peer median. That contributed data is what makes the next version more accurate.