I give it 5 stars because I tried it against another download app with the same features but the latter did not give me a very good result. I see that in both apps, the video is downloaded in segments, but in the latter the contrast between audio and video is very noticeable. On the other hand, in this one it gives a better result, but even so there is a small cut in the image at certain moments of the video. I have downloaded a 20-minute video in both apps, this one has a better performance but visualizing the result, I still think it needs to be fine-tuned a bit more.