The Rieter Calculator is the preferred tool by many textile experts to perform textile calculations such as yarn counts, twist etc. The calculator is revised for the 64-bit technology of the IOS operating system.
Download the Rieter Calculator from the Apple App Store or from this website.
The program uses Microsoft .NET Framework 3.5. If the application gives an error, then probably your machine does not have Microsoft .NET Framework 3.5. kindly use any ONE of the links given below to download it.