나이체커 2 is a free age calculator app developed by Sb LAB available on the Android platform. This utility app is suitable for students, teenagers, teachers, and employers who want to determine their age or someone else's age quickly. The app requires the user to enter their date of birth, and it automatically calculates their age in years, months, and days.

The app's main features include determining whether the user is old enough to go to places like a pub, karaoke room, PC room, or jjimjilbang. It also calculates the user's age at the counter and whether they can enter as a guest. Additionally, the app can determine when the user can legally drink and how long they have to wait to be free. The app also provides the user with their Korean age based on the current statute DB, and it updates in real-time whenever changes are made.

Overall, 나이체커 2 is a helpful and convenient age calculator app that provides accurate age information. The app is available for free on the Google Play Store, and users can provide feedback or request improvements through the Free Talking feature or by leaving comments on the app page.