বয়স ক্যালকুলেটর (Boyos Calculator) is a lifestyle app designed for calculating ages. Users can easily determine their age or that of family and friends in days, months, and years, along with information about upcoming birthdays. The app includes a feature that accurately calculates the user's true age based on the difference between today's date and their birth date, even accommodating leap years.

Key features include the ability to set dates by scrolling through a calendar or manually inputting them, display age in years, months, days, hours, minutes, and seconds, and save birthdays with photos for easy access. Users can also receive birthday notifications, customize their profiles, change theme colors, and share information with friends. Overall, this app offers a detailed and user-friendly experience for age calculation.