Opis Secret Video Recorder (free)

Doesn't record device's screen.
Record your videos silently and easy at any moment you desire.
Simple navigation to menu and just one click to Enable over button or over menu.
The application is designed for a wide range of mobile devices with the simplification of exterior styling and additional settings.
Recording is activated by the user and then stop recording at any desired moment.
There is possibility to define duration
of recorded video.
You will be able to select resolution of recorded video (please be informed that resolution depends of camera's supported features).
Technical options are simplified to a minimum, but can be modified in the future at a certain number of users desires.
There are necessary options for recording phone conversations while video recording if it's support by device (due to technical limitation of some device models).
Opportunity of using to non-rooted devices.
There are no ads included in application.
After installation please try to adjust the best recording quality with additional options specified in the submenu:
-Select video source
-Select video encoder
-Select video bitrate
-Select the recording file format, etc.
Thank you for your attention!