A vintage-style scientific calculator with a retro LCD display and realistic key sounds. Perform basic and advanced calculations, use shift functions, and access additional modern features like parentheses and memory storage.
by Paul SALANITRI★ 4.619 ratingsUtilitiesFreeData updated 2026-09-08
The app offers a classic slide rule experience with precision and educational features. Users can learn calculations through an auto-slide-rule mode and select from 19 basic operations, including multiplication, division, powers, and logarithms.
The app allows users to classify and count leukocytes while viewing through a microscope. Button presses can be distinguished by sound, and the app signals completion when the upper bound is reached.
The app offers a practical text calculator with WYSIWYG display. It supports basic arithmetic, exponentiation, radicals, logarithms, factorials, permutations, combinations, trigonometric functions, hyperbolic functions, and more.
The app converts between binary and decimal formats as users type. It features a simple interface with large buttons and exports results to the clipboard.
Tracks driving time automatically and updates logs in real time. Displays remaining drive time and shift limits with clear timers. Allows quick changes to duty status with one-tap updates.