Checkout Add-Ons offers lots of features to let you customize your checkout experience:

• Create many custom field types to cover many different uses – text, text area, drop-downs (i.e. select fields), multi-selects, radio buttons, checkbox, multi-checkbox lists, and file uploads
• Add option fields for add-on services and upsells (does not support inventory management)
• Optionally add fixed-amount or percentage-based costs based on how customers interact with the field
• Create conditional add-ons that appear or change based on factors like cart subtotal, products in the cart, or the value of another add-on
• Dynamically update order details and total at checkout as options are selected or modified
• Supports WooCommerce Subscriptions by adding add-ons to the initial purchase and, optionally, to renewal orders
• Compatible with One Page Checkout
• Customers can view selected add-ons from order detail pages and emails
• Admins can sort and filter the WooCommerce > Orders page based on add-ons and their values
• Saves selected options and uploads, even if customers browse away from checkout