The "Calculator for School" is a versatile tool offering four different calculator modes: Basic, Scientific, Programming, and Minimalistic. The Basic mode allows for standard arithmetic operations and percentage calculations, while the Scientific mode provides access to algebra and trigonometric functions. The Programming mode functions as a powerful command-line calculator supporting various numerical systems, and the Minimalistic mode offers a simplified interface with only a command line and result display.

Users can customize the calculator display for portrait and landscape modes in settings and choose input types for trigonometric functions in Degrees, Radians, or Grads. The calculator also offers fraction conversion for outputs and preserves current and previous calculations between sessions, with the option to disable this feature in settings. Additionally, users can access a history of calculations, search through it, delete specific items, or clear the entire history.