zSpreadsheet is a feature-rich spreadsheet app designed for iPhone, iPad, and iPod touch users. It allows for the creation of spreadsheets with up to 26 columns and 2500 rows, enabling users to handle complex calculations effortlessly. The app supports various functions like sum, product, average, logarithms, trig functions, and more, making it versatile for diverse calculation needs.

Moreover, zSpreadsheet offers customization options such as formatting cells with bold, italic, alignment adjustments, color choices, and multiple font selections. Users can also enhance the visual appeal of their spreadsheets by adding solid borders to cells. The app facilitates easy sharing and printing by enabling users to email spreadsheets in HTML or CSV formats and print directly to AirPrint-compatible printers.