For a spy at heart, here is a Secret Video recording app
You want to become a spy and always be caught when you try to record something. Do not worry, try this app - Secret Video Recorder and turn a spy.
Secret Video Recorder is the best hidden camcorder or video recorder available in the market. It makes no sound, gives no preview. Recording starts and stops in the background, and can be cone using any camera front or back. Recording can be done with one touch and the app continues recording after it turns the screen off.
Recording in this free version is up to 30 sec. If you like this app, consider buying the Secret Video Recorder Pro version.
The app works for Samsung devices and is available at the Samsung app store. The app is compatible and extensively tested on all versions of Android