reQall is described as 'The best tool to integrate your memory with your life, helping you get more from life while improving your real memory. It does this by building on the easiest, most natural communications base -- your voice -- to access an intelligent, intuitive, centralized memory;' and is an app in the sport & health category. There are more than 100 alternatives to reQall for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best reQall alternative is Zim, which is both free and Open Source. Other great apps like reQall are Todoist, CherryTree, Trilium Notes and Cryptee.