How is GDM different from IDM?

The layout is familiar on purpose: the toolbar, the categories, the download list, the progress window with every connection, queues and the scheduler. The differences: GDM is free and open source, downloads BitTorrent and magnet links in the same list, finished faster in our benchmark, speaks 86 languages and has builds for Linux and macOS. IDM is the more mature product, refined over many years. See the full comparison.