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 three functions to learn subtraction. It includes subtracting one-digit numbers, subtracting two-digit numbers with regrouping, and a subtraction practice game.
The app is a four-button timer that counts down minutes and seconds. When the timer expires, a ring sounds, the display flashes, and the elapsed time is shown.