Cifra

Cifra is a free daily number guessing game that tests how well you know the world around you. Every day, you get 5 new questions about real-world figures covering topics like gaming, technology, science, money, sports, movies, history, and more. Enter your best estimate and instantly see how close you were, with a scoring system designed to fairly compare answers across numbers of any size. Every question is backed by a real source, and there’s no signup required — just play and compare your score each day.