Why Upgrade?
Check out the full comparison between YayMail Free and Pro so that you will have an informed decision. Maybe a YayMail Addon is your missing piece!

Compare YayMail Free vs. Pro Version

Both YayMail Free and Pro provide the core functionality of editing email content and customizing email designs. You should upgrade to Pro if you want to display variables and placeholders from third-party extensions in the emails.
Please note that YayMail Pro does not include third-party email templates.
11 Default WooCommerce Emails
Full Customizability
All-in-One Upper Toolbar
Instant Live Preview
Send Test Email
Fast Updates
1-1 Live Chat VIP Support
Third-Party Plugins Supported (See below)
Shipment Tracking by WooCommerce
Advanced Shipment Tracking by Zorem
YITH WooCommerce Order Tracking
Shipment Tracking by PluginHive
Chitchats Shipping Pro
Custom Order Status by TycheSoftwares
Order Status Manager by SkyVerge
Admin Custom Order Fields by SkyVerge
WooCommerce Show Attributes by Isabel Castillo
Checkout Field Editor by WooCommerce
Checkout Field Editor by Themehigh
For third-party plugins' email templates, see YayMail Addons.

YayMail Premium Addons

If you are using a third-party WooCommerce extension that adds new email templates to the 11 default email notifications, you can buy a dedicated YayMail Premium Addon to customize those emails.
YayMail Addons can be bought apiece and added to your current YayMail core. A YayMail Addon works with either YayMail free or pro version. From then on you can edit all the newly generated email templates in YayMail's drag and drop framework.
Here's the complete list of plugins that generate new email templates which can be fully customized by YayMail Addon:
Plugin Name
Link to YayMail Addon
WooCommerce Subscriptions
Get Addon
WooCommerce Bookings
Get Addon
WooCommerce Waitlist
WooCommerce Pre-Orders
Get Addon
Get Addon
Gift Cards
Get Addon
Get Addon
Stripe Payment Gateway
Get Addon
Smart Coupons
Order Cancellation Email to Customer
SUMO Payment Plans
SUMO Subscriptions
YITH Subscription
YITH Wishlist
YITH Pre-Order
YITH WooCommerce Delivery Date
Get Addon
YITH WooCommerce Multi-Vendor
YITH Booking
YITH Gift Cards