PreRap is a free registration app developed by Ceni RDC for Android users. The app simplifies the voter registration process by allowing users to enter and store their biographical data and generate three QR codes. These QR codes can be scanned by an enrollment software to retrieve the user's biographical information, thus eliminating the need for manual data entry.

By using PreRap, voters can save time and effort when registering. The app is particularly useful for those who need to register multiple times, such as individuals who move frequently, as it eliminates the need to repeatedly fill out registration forms. Overall, PreRap is a convenient and efficient tool for simplifying the voter registration process.