Checksum Control is described as 'A program to verify and write checksumfiles. It supports SFV and MD5 , even some exotic MD5 file types. Very easy to use, with a wizard interface' and is an app. There are more than 25 alternatives to Checksum Control for a variety of platforms, including Windows, Linux, Mac, Android and BSD apps. The best Checksum Control alternative is HashCheck Shell Extension, which is both free and Open Source. Other great apps like Checksum Control are FileBot, GtkHash, Collision and Windows Context Menu Tools.