Optionfier

Optionfier is the only product options app that tracks real inventory for custom add-ons. When customers select options like "Engraved Brass Plate" or "Gift Wrap," the app automatically reduces stock levels just like product variants do, preventing overselling of custom configurations. Build personalized products with no coding required using dropdowns, swatches, file uploads, date pickers, and text fields. Install with one theme block and get native cart bundles, conditional visibility, and POS support built right in. Track inventory for custom options across multiple products using connected inventory groups—no need to duplicate SKUs. Show or hide options based on customer selections, create mix-and-match bundles, and manage stock for engravings, gift wrap, and other add-ons all in one place.