Mechanical Calculator

This application is a calculator that allows you to perform basic mathematical operations such as addition, subtraction, multiplication, and division. It also has additional features such as percentage calculation, sign toggling, and backspace for the current entry. The calculator has a paper tape function that records all your inputs, operations, and results, giving you a visual representation of your calculations. This tape can be exported and shared in various formats such as TXT, CSV, PNG/JPG, and PDF. The calculator has a unique mechanical "printing" feel, which gives you the option to have a dot-matrix style printing/animation when performing calculations. This adds a nostalgic touch to the calculator and makes it stand out from other calculator apps. The app also has a landscape mode, where the tape and keypad are displayed side-by-side, with the option to have the keypad on the left or right side. The app allows for personalization, where you can choose the decimal display format (Auto, Fixed 1, or Fixed 2), adjust the tape font size, and select from different button color presets. There is also an option for sound effects, which can be disabled if preferred. Disabling the sound effects also disables the printing animation. Privacy and offline use are important features of this app. There is no sign-in required, and all calculations and preferences stay on your device. The app also offers optional ads through Google AdMob, which may use the internet and collect data to serve ads. However, these ads can be disabled in the settings. This calculator app is compatible with Android 8.0 and above. It is designed to be original and SEO-oriented, providing a unique and user-friendly experience for its users. With its various features and personalization options, this calculator app is a convenient and efficient tool for everyday use.