Timer 555 Calculator is a utility app designed for iPhone users, developed by Siu Yuen Ho. This free app falls under the Utilities & Tools category and serves as a handy tool for electronics enthusiasts. It specializes in calculating monostable and astable circuits efficiently.

With Timer 555 Calculator, users can easily determine the pulse width of a monostable circuit and the frequency of an astable circuit. Additionally, the app allows users to find the ideal combination of components to achieve a desired pulse width or frequency. Moreover, users can save component values in CSV files and conveniently share them via AirDrop or iCloud Drive. The app also offers multilingual support in English, German, French, Italian, Spanish, Portuguese, Japanese, Korean, and Russian.