Vintage-45for iOS

Vintage-45 is a meticulous simulation of the Hewlett-Packard's HP-45 scientific hand-held calculator, offering a photo-realistic design with animated keys and all functions faithfully replicated. Users can enjoy the nostalgia of the "secret" stopwatch feature and choose between full-speed or simulated speed for an authentic experience. The app allows for correcting number entries by swiping across the display, supports cut/copy/paste functions, and offers additional conversions like Celsius to Fahrenheit. Users can also access stack and memory registers for further guidance and basic hints by tapping on the display.

Vintage-45 provides a unique experience for users looking to relive the functionality of the HP-45 calculator in a digital format. With attention to detail in design and functionality, this app caters to those seeking a nostalgic yet practical calculator solution.