Todo.txt for Windows 10 Actiontext is a very simple and basic universal app for managing your tasks. It uses the todo.txt file format. Todo.txt (http://todotxt.com) is an open standard way of storing tasks in a text file with dates, priorities and completion. You can then synchronise the file with your cloud provider of choice. The app needs access to your storage in order to read and write the todo.txt file. The app itself is open source and released under the BSD license. To see other applications that do similar things on other platforms please visit http://todotxt.com