Birthday Countdown Reminders is a free iPhone application developed by Lesya Verbina. It falls under the category of Business & Productivity and offers a unique way to celebrate birthdays and anniversaries.

With Birthday Countdown Reminders, you can easily arrange your contacts into groups and customize their appearance and reminders. This allows you to stay organized and never miss an important event. The app also provides a countdown feature, allowing you to track the time remaining until the event in days, months, hours, and more.

The user interface is intuitive and user-friendly, making it easy to navigate and set up reminders. Whether you want to keep track of your own birthdays or those of your friends and family, Birthday Countdown Reminders provides a convenient solution.

Overall, Birthday Countdown Reminders is a useful tool for anyone who wants to stay on top of birthdays and anniversaries. Its customizable features and countdown functionality make it a standout choice in the category of business and productivity apps.