, Yes friends I am talking about kinemaster it is the most popular aap of software known for video editing the aap provides a lot of features in it such as, we can reduce the speed of video player and we can merge videos , trimm videos, and also we can add sound effects, background music, mute the sound of video, we can add text in video, pictures in the video and many more options are available there the most popular youtuber says that he uses kinemaster mobile app for video editing.so it is very useful friends.in this aap there are to types one is common account and another one is premium account if we dont want any watermark inside the video than we ha to upgrade to premium account.thank you friends.