Nebo.app - Highly acclaimed note-taking app powered by advanced handwriting recognition.
vim-pad - Note-taking extension for Vim text editor.
Pen to Print - Pen to Print: Convert handwriting to text created and published by Serendi LTD.
Gollum - Gollum is a simple wiki system built on top of Git
Handwriting - Handwriting is a feature-rich fun app that provides you with the ability to create handwriting and paint notebooks on your Android devices.
Trilium Notes - Trilium Notes is a hierarchical note taking application.