Discover the world through fun and challenging quizzes, covering geography, culture, and landmarks from around the globe. Download now and join a global community of explorers to become a true geography expert!






188+ iOS apps & games curated and reviewed
Out of 188+ geolio apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.






Discover the world through fun and challenging quizzes, covering geography, culture, and landmarks from around the globe. Download now and join a global community of explorers to become a true geography expert!






GeoCapital is an engaging geography game that challenges players to test their knowledge of world capitals and geography. Earn points by swiping the correct capital in the indicated direction and enjoy various mini-games to enhance your geographical skills. Perfect for all ages looking to have fun while learning about the world!






Discover the fascinating world of Earth sciences with this interactive geology trivia app, designed to make learning engaging and effective. Test your knowledge, challenge yourself or others, and master geology topics with structured content, quizzes, and multiplayer features.




This application streamlines the process of compiling observation logs for Static GNSS (GPS) Observations, eliminating errors and promoting accurate project documentation. By using this app, you can efficiently record and manage observations, add equipment details, and export customized logs to PDF, making it an environmentally friendly replacement for traditional paper logs.


This application is a comprehensive glossary of volcanic products and features, showcasing the unique geology of two of the world's most active volcanoes. Explore an array of fascinating geologic terms and features, from lava types to volcanic formations.


Get real-time worldwide earthquake data, alerts, and interactive maps to stay informed and prepared. Monitor seismic activity, receive instant notifications, and explore earthquake history. Stay safe and aware with our comprehensive earthquake application.




Track your time effortlessly with this location-based app that automatically logs your work hours when you enter or leave designated areas. Stay organized and productive with Geofency - try it now!


"Discover stones, gems, and crystals with ease using our all-in-one identifier app. Simply snap a photo or upload an image to learn more about your finds instantly. Start exploring today!"


This mobile app streamlines geological fieldwork by allowing users to record observations, capture photos and sketches, and collect orientation data, all from a single, map-centered platform. With its robust features, users can efficiently collect and organize spatially referenced data, work offline, and sync their data to a digital system for seamless analysis and backup.


This field tool helps gold prospectors explore more efficiently and uncover high-potential gold zones faster by combining advanced geological datasets with intuitive GPS mapping tools. With features like offline access, breadcrumb trail tracking, and real-time GPS navigation, prospectors can swing a detector, pan a creek, or explore remote terrain with confidence and professional-grade data at their fingertips.


Explore Mars with simple gestures by rotating a globe, tilting, zooming, and selecting locations. Discover about 80 fascinating areas on the Mars map like volcanoes, craters, and mountains, with detailed information provided. Take a journey to the red planet today!


Track your flight offline with GPS, explore geologic maps, fossils, and Wikipedia articles visible below during flights, road trips, or hikes. Discover the world as you travel and stay connected with Flyover Country for updates and photos. Submit feedback and engage with geoscience outreach via the app's social media channels.


Explore and document your geologic surroundings with an interactive app that provides geologic and geographic information, maps, a 3D virtual globe, and the ability to log your observations and journey through the geologic record. Developed by the Macrostrat lab at the University of Wisconsin - Madison, backed by the National Science Foundation and the Department of Geoscience. For support, contact contact@rockd.org.


Explore Earth's deep history with a time machine-like application that lets you scroll through 4.5 billion years of evolution. Discover continental shifts, sea levels, global temperatures, and more, all based on scientific research. Join the journey with interactive features and educational resources for a deeper understanding of our dynamic planet.


Learn geology with a child-friendly science teacher through interactive lessons, games, and quizzes. Explore Earth's core, plate tectonics, and more, with the option to try for free and unlock all content with a one-time payment.


This interactive geological time scale application provides detailed information on time units, including their definitions and color codes, and allows users to search by name or age. It also features a global geological map and offers tips and examples for using time terms, making it a valuable resource for geologists, students, and anyone interested in Earth history.

