Pamir

The “Birthday Bash” free plugin is the perfect solution for small WooCommerce stores looking to add basic yet effective birthday coupon functionality. Automatically send a special gift to your customers on their birthday, making them feel valued and encouraging repeat purchases.
✨ Core Features:
<ul>
<li>Automated Coupon Sending: Send birthday coupons automatically 7 days before a user’s birthday.</li>
<li>Basic Email Customization: Personalize your birthday emails with your store’s logo, a custom greeting, and a message.</li>
<li>Flexible Birthday Collection:
<ul>
<li>Allow users to manually enter their birth day and month in their “My Account” area.</li>
<li>Optionally collect birth day and month directly during the checkout process (including on Gutenberg-built checkout pages via a dedicated block).</li>
</ul>
</li>
<li>Coupon Display: Inform customers about their active birthday coupon directly on the cart page.</li>
<li>Coupon Configuration:
<ul>
<li>Set coupons as a fixed cart discount or a percentage discount.</li>
<li>Coupons automatically expire after 14 days from issuance.</li>
</ul>
</li>
<li>User Restrictions: Restrict birthday coupons to logged-in users only.</li>
<li>Admin Control:
<ul>
<li>Option to make the birthday field mandatory during checkout and in My Account.</li>
<li>Option for users to easily unsubscribe from birthday coupon emails.</li>
</ul>
</li>
<li>Basic Logging: View a simple log of issued birthday coupons within the WooCommerce > Coupons section (via custom meta data).</li>
</ul>

Birthday Bash

Make WooCommerce customers happy by automatically sending birthday coupons. It’s an easy way to boost loyalty and bring them back to shop again.

angelorum

Creates a widget to display user’s birthdays of today, and next and past birthdays. Responsive and customizable.
Features: 
– This plugin adds a field in users profile for the user can enter his birthday date, from a calendar jquery popup. 
– Creates a widget to be added to the site. This widget displays to the users who are in birthday today. 
– The widget also allows display the next users who will be in birthday, and the past users too. You can choose the amount of users birthday to be shown. 
– Widget customizable: amount of past and next birthdays to show, show or hide users avatars.. 
– Exports user birthdays to iCal format. 
– Translations: english and spanish.
<h3>Useful links</h3>
<ul>
<li>Oficial website: http://codificando.cl/web/?page_id=92</li>
<li>Developer’s email: jason.matamala@gmail.com</li>
</ul>

Jason Birthday Widget

Good

Creates a widget to displays user's birthdays of today, and next and past birthdays. Exports user birthdays to iCal format. Customizable.

Birthday Bash vs Jason Birthday Widget