Socialcast VS EssentialPIM

Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Scrivener - Scrivener is a content-generation tool for composing and structuring documents.

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.

Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.

Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.