By using Thumbnail Youtube downloader we can also download various Youtube video thumbnails. Both from an iPhone, Android, Windows phone, etc.
The method is almost the same as downloading Youtube video thumbnails as usual. But if we open Youtube from the Smarthphone application, how to get the video link is certainly different. If we open youtube from the browser the same way.
Download youtube thumbnails via our smartphone also get the same quality, namely HD, SQ, SD, etc.
If we want to download Yutube thumbnails from the application, please see how to complete the following.