Yes, MageDelight offers lifetime free updates along with this Magento 2 Delivery Date Extension.

Checkout this guide on How to Add Delivery Date to the Checkout Page in Magento 2 with Time to setup this extension.

Here are the few more resource to help you get most out of this Magento 2 eWallet Extension.

• How to Ensure Magento Store Product Deliveries Through Delivery Date Extension
• 3 Best Magento 2 Extensions to Offer Personalized Shopping Experience