What's the best iOS app for learning world geography through exploration?

GeoGuessr is a unique geography-based game that presents an unconventional but effective method for building world knowledge. The core premise involves being placed into a random, real-world Google Street View location and using visual clues—such as language on signs, architecture, vegetation, and vehicle types—to pinpoint the location on a map. This process actively develops skills in recognizing regional characteristics and understanding global diversity. Key features include an Explore Mode for solo practice across themed maps (like famous places or specific countries), and competitive multiplayer duels that test speed and accuracy against others. For classroom use or casual learning, it encourages research and deduction. However, some user reviews point to occasional instability, with the app crashing for high-level players, and others note that the location algorithm can feel repetitive, over-sampling certain regions. Despite these technical imperfections, its engaging format makes geographic learning feel less like study and more like an adventure.