De miért? is a free Android lifestyle app developed by QQTAC. This app is inspired by an annoying Fluimucil commercial and is created for fun. The name of the app, "De miért?" in Hungarian means "But why?" in English.

The app is a simple and straightforward one, with a single screen featuring a picture of a man and a woman, tapping on which produces a sound clip of the man asking "De miért?" ("But why?" in English) in a slow and deep tone. The sound clip is played randomly, and users can tap the picture multiple times to hear it repeatedly. The app does not have any in-app purchases or advertisements.

Overall, De miért? is a fun app that can be used to lighten the mood or just for entertainment purposes. It is not meant for any practical use, but it is a good way to kill time and have a laugh.