Cek Weton is an Android application developed by UNAYA. It is a free educational and reference app that aims to preserve Javanese culture. Weton refers to the day of birth according to the Javanese calendar, which consists of a combination of a day (dino) and a market day (pasaran). Each day and market day has its own specific number and is considered standard. These numbers have been in existence for hundreds of years since Javanese culture emerged.

The main purpose of this application is to calculate the weton based on the Gregorian calendar date of birth. It serves as a tool to help users determine their weton and therefore gain insight into their Javanese cultural heritage. This tradition has been a guiding principle for many parents in the past and continues to hold significance in Javanese society.