BatchRatio

BatchRatio is a private, offline batch scaling and cost worksheet for makers, studios, workshops, and small production teams. Build a reusable component template, set its base output, and enter any target output. BatchRatio instantly scales every component and estimates the finished batch cost from the unit costs you enter. Use the included, clearly labeled example to review the complete workflow immediately. Create and save your own templates, edit component names, quantities, units, and costs, then export the result as CSV. BatchRatio Pro Lifetime is a one-time non-consumable purchase that unlocks unlimited saved templates and printable PDF exports. The free version supports up to three user-created templates and CSV export. Privacy is simple: templates and exports stay on your device. There is no account, analytics, tracking, advertising, cloud sync, backend, or external processing service. BatchRatio does not collect personal data. Apple processes purchases; the app never receives payment-card details. BatchRatio is a general productivity and cost-planning tool. Always verify quantities, units, costs, material compatibility, and safety requirements for your own workflow.