Windows PC
Download Rivet Estimator for 64-bit Windows. Windows may show a SmartScreen warning until the installer is code-signed.
Android phone or tablet
Download the Rivet Estimator APK. Android may ask you to allow installs from your browser before it can open the package.
iPhone, iPad, Mac, Linux, or Chromebook
Use the secure web edition in your browser. Native Rivet installers are currently available for Windows and Android.