Probo:Trade On Your Opinion - An Event Prediction Platform Probo is an Android-based event prediction platform developed by Universal Coder. It is a free app that lets users bet on various topics and events and earn money. Probo Apk is an abbreviation for "Probe App," which means the search for truth. The app allows you to take a position on future events and convert potential differences into prices. Probo Apk Download Latest Version