Privacy
Your calculator inputs stay in your browser
The static tools do not need accounts and are designed not to transmit the numbers you enter.
Data collection
No third-party tracker is included in this build. If aggregate host statistics are enabled later, the notice will be updated before deployment. Purchases are processed by Gumroad under its own privacy terms.
Do not enter client personal data
The public calculators do not need names, contact details, event addresses or music libraries. Keep completed client workbooks in storage you control.