WooCommerce Free Gift

Reward customers with a free gift for spending more than a specified amount of money.
This WooCommerce extension makes it possible to effectively motivate customers by rewarding them with a free gift for spending at least a specified amount of money.

WooCommerce Free Gift highlights include:

Option to specify a single product as the gift or to allow customers select a gift from a specified category according to the order price.
The functionality can be enabled for all customers or only for registered customers.
Giving a gift to the same customer more than once may be disabled if desired.
Option to hide the gift products from customers in the shop.
Support for variable products: the gift can be a concrete product variation as well.
Possibility to set two levels of gifts according to the order price (cart total or subtotal). This means that customer may be rewarded a better gift if he/she spends even more money.
New: Full ajax-driven combo box for the gift selection with a reasonable non-js fallback.
New: Possibility to set the gift to be visually added to the cart
New: A product or category of products can be excluded which means that if they are specified and they are put in the cart, no gift will be applied.
New: A new easy update system for future releases.
New: Settings split to Basic and Advanced sections for better clarity