You can download the version of eFiscal that was used in the Argentine elections here:
eFiscal is an open-source software project. The code is available to anyone to use, extend and improve. You can modify eFiscal for your local electoral process.
eFiscal makes it a snap to record and send vote tally data securely
Fast and secure transmission of voting data
Through the app, table observers can send photos of the oficial tally sheets with all the results.
Full Transparency in Real Time
Tabulated vote information is displayed as it comes in through the eFiscal live web platform to political party monitors and if local law permits, to any citizen who downloads the app.
Each political party can run its own instance of eFiscal so there can be redundant checks on the official results. Any discrepancies can be traced back to the location, table, and tally sheet so an audit of the paper record can be easily and quickly done.