FBI Open Up Meme Button is an Android application developed by Radikal Meme Apps. The app is free and falls under the Lifestyle category. The app features a sound button with a GIF animation that plays the famous meme of FBI Open Up, where the FBI knocks on the door and breaks it open.

The app is easy to use, and all you have to do is press the button to play the sound with the animation. The app also offers premium features such as downloading the sound file, sharing the sound file, and sharing the app with your friends.

Overall, FBI Open Up Meme Button is a fun and entertaining app that allows you to troll and joke around with your friends and family. The app is perfect for those who enjoy memes and want to have some fun.