If you’re like most iPhone users, you probably save all of your Snapchat videos on your device for when you want to watch them later. But what if someone else wants to watch your video? Here’s how to save other people’s Snapchat videos on iPhone without them knowing. To save a Snapchat video, first open the app and tap on the camera icon in the bottom left corner. Next, tap on the three lines in the top left corner of the screen and select “Save Video.” You can now choose where to save the video, and if you want to keep track of who has seen it. ..