Description: GeeksforGeeks is a computer science portal with a huge variety of well-written and explained computer science and programming articles, quizzes and interview questions. It covers topics like data structures, algorithms, operating systems, languages like C++ and Java, and more.
Type: software
Description: Numbers is a spreadsheet app developed by Apple for macOS and iOS. It features calculation, graphing tools, and simple table creation. A good alternative is LibreOffice Calc which is free, open source software.
Type: software
Pricing: Open Source