TaskOnPaper is described as 'powerful and at the same time an intuitive tool for creating to-do lists. Enter your plans and goals, group them into projects and edit them as easily as on paper' and is an app in the Office & Productivity category. There are more than 25 alternatives to TaskOnPaper for a variety of platforms, including Mac, iPhone, Windows, Online / Web-based and Android. The best alternative is Dynalist, which is free. Other great apps like TaskOnPaper are Org mode (Free, Open Source), Things (Paid), Any.do (Freemium) and 2Do (Paid).
2Do lets you take a completely different approach to managing your tasks. With its extremely simple-to-use interface and a comprehensive and flexible set of powerful features, it lets you focus on what's most important to you: your life.
Nirvana is a secure, cloud-based GTD® task manager accessible from your desktop web browser and mobile devices. If you have more to do than you can manage in your head, or if you want greater clarity of mind and focus in life, Nirvana is for you.
Simple GTD application to manage your tasks and to-dos. Syncs with web server. Complete with the usual Inbox, Today, Next, Tomorrow, Scheduled and Someday "buckets" as most GTD programs have. You can also create Projects for tasks with multiple steps.
Make lists and get organized. TaskPaper is a plain text to-do list that’s surprisingly adept. Outliners are powerful, but hard to use. Text editors are easy, but without structure. TaskPaper feels like a text editor, but has the power of an outliner.