This open-source tool collection offers a wide range of cryptographic, geographic, and scientific calculations. It's designed to assist with in-field mysteries and riddles, but its extensive features make it useful for many non-geocaching tasks.






8+ similar apps compared and reviewed
Whether you want more options like codefish or a completely different take on the same concept, our curated list of 8+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.






This open-source tool collection offers a wide range of cryptographic, geographic, and scientific calculations. It's designed to assist with in-field mysteries and riddles, but its extensive features make it useful for many non-geocaching tasks.








Organize your Pokémon card collection and wishlists with this app. Easily add cards, track your inventory, and filter by various criteria. Access your collection offline and keep your data private.


This comprehensive fishing app offers a wealth of information and tools for anglers. Access details on fish species, knots, fishing regulations, and more. Many features are available offline, making it ideal for remote fishing trips.


This app acts as a crossword puzzle dictionary, providing thousands of clues and answers to help you solve puzzles quickly. It's designed for all skill levels, saving you time and enhancing your enjoyment of word games.


Identify and learn about fish species found in Brandenburg, Germany. This app provides detailed information on over 100 fish, including legal regulations and protection statuses. Users can also track individual fishing regulations for their preferred waters.



