POST-FC is an Android application designed to help users conveniently check the insurance premiums of the Korean Postal Service. This free app by developer Sin Kihak allows users to check premiums anytime, anywhere, without having to pay taxes.

The app offers a user-friendly interface that allows users to select different insurance products and view their premiums. By clicking on a product title, users can switch to a new screen that displays detailed information about the product. Additionally, users can switch between genders and ages to view the specific terms and conditions of each product.

POST-FC also features a practical option that allows users to switch between different insurance types. For example, choosing 'Dundeun Jongshin-1' will automatically switch the insurance type to 'Dundeun Jongshin-2'. If users select 'Silsok Jeonggi Hwangbeop', the app will only show the pure change.

However, it is important to note that the app displays developer contact information, including an email address and phone number.

Overall, POST-FC is a useful app for those who wish to easily check their Korean Postal Service insurance premiums.