iBirthday X 2.3 for Mac was available as a free download on our application library. The most popular version of the software is 2.3. The actual developer of this Mac application is EZPZapps. The program relates to Productivity Tools.
From the developer:
Remember birthdays, anniversaries and all your important days.
You may want to check out more software for Mac, such as Dual Calendar System, Tomato or CoolBigClock, which might be similar to iBirthday X.