PNotes is described as '(Pinned Notes or Portable Notes, use what you prefer) is written entirely in C and Windows API (with Pelles C for Windows IDE) - so it is fast and light-weight. It has flexible settings - both for the program in whole and for individual note' and is a Note-taking tool in the office & productivity category. There are more than 50 alternatives to PNotes for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best PNotes alternative is Notesnook, which is both free and Open Source. Other great apps like PNotes are CherryTree, Trilium Notes, Cryptee and Tomboy.