WEPLAY PERMANENT CALENDAR - THE FIRST VIETNAMESE CALENDAR APPLICATION TO REACH 5 MILLION INSTALLS. ANNUAL CALENDAR 2025 - Reaching 10 million installs! PERMANENT CALENDAR 2025: is a FREE application that helps you look up the lunar and solar calendars conveniently and quickly. PERMANENT CALENDAR 2025 allows viewing information about the date, lunisolar calendar and many other useful information. Main functions: - View calendar date. - View monthly calendar. - Change lunar calendar to solar,