Jupyter is described as 'The Jupyter Notebook is a web application that allows you to create and share documents that contain live code, equations, visualizations and explanatory text. Uses include: data cleaning and transformation, numerical simulation, statistical modeling, machine learning and much' and is a popular jupyter notebook in the development category. There are more than 50 alternatives to Jupyter for a variety of platforms, including Web-based, Windows, Linux, Mac and Self-Hosted apps. The best Jupyter alternative is RStudio, which is both free and Open Source. Other great apps like Jupyter are Mathematica, GNU Octave, SageMath and Spyder.
Very similar to Jupyter, but leaving aside the notion of a "session" it embraces multiple language cells in a single notebook and cross-language data translation between code cells.