Geocaching GCTK

Geocaching GCTK

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Logo of Geocaching GCTK

Geocaching GCTK: The Ultimate Swiss Army Knife for Mystery & Multi-Caches

Equip yourself with 150+ professional tools for decoding, navigation, and coordinate conversion. Built for the analytical explorer, this offline-ready toolkit ensures no mystery remains unsolved—no subscriptions, just pure power in your pocket.

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Publisher

JW Rijkes

Category

Navigation

Downloads

88K+

User Rating

4.7/5

Total Ratings

400

Locales

5

Master the Mystery

Discover the interface used by 88K+ users.

Main menu of the Geocaching GCTK app displaying categories for navigation, decoding, and conversions.

Main menu of the Geocaching GCTK app displaying categories for navigation, decoding, and conversions.

A map display within the Geocaching GCTK app showing two waypoints with intersecting lines and a green arrow indicating the calculated location.

A map display within the Geocaching GCTK app showing two waypoints with intersecting lines and a green arrow indicating the calculated location.

A mobile interface for the Geocaching GCTK app showing a navigation tool to calculate a new waypoint using distances and bearings from two existing coordinates.

A mobile interface for the Geocaching GCTK app showing a navigation tool to calculate a new waypoint using distances and bearings from two existing coordinates.

A topographic map in the Geocaching GCTK app showing two points intersecting at a calculated waypoint coordinate.

A topographic map in the Geocaching GCTK app showing two points intersecting at a calculated waypoint coordinate.

Navigation and coordinate calculation tools menu in the Geocaching GCTK app

Navigation and coordinate calculation tools menu in the Geocaching GCTK app

Geocaching GCTK app map showing waypoints with bearing and distance calculations

Geocaching GCTK app map showing waypoints with bearing and distance calculations

A list of various decoding tables and ciphers within the Geocaching GCTK mobile app

A list of various decoding tables and ciphers within the Geocaching GCTK mobile app

Birds on a wire decoding table for geocaching mystery puzzles

Birds on a wire decoding table for geocaching mystery puzzles

Sudoku solver tool screen in the Geocaching GCTK app featuring a puzzle grid and numeric keypad

Sudoku solver tool screen in the Geocaching GCTK app featuring a puzzle grid and numeric keypad

Master Every Mystery in the Field

The tools that make this app stand out, trusted by 88K+ users.

🧭

Advanced Field Navigation

Project waypoints, calculate circle intersections, and find centroids with surgical precision, ensuring you hit the mark even in the deepest woods.

🕵️‍♂️

Instant Cipher Decoding

From Pigpen and Braille to Vigenère and Mayan numerals—access over 90 interactive tables to crack complex on-site puzzles without a data connection.

🛠️

Complete Offline Utility

A zero-subscription arsenal featuring unit conversions, text analysis, and barcode scanning. Buy it once, own the ultimate toolkit forever.

About the app

Everything you need to know about Geocaching GCTK.

Description

150+ tools and decoding tables to help you solve mystery- and multi-caches and make navigational computations, conversions, decodings and text analyses. The number of tools will grow depending your input, so mail us to suggest/request a new tool or decoding table! * No additional in-app purchases required * No additional charge for features/tools that will be added in future versions. GCTK features: CONVERSIONS Base64/Binary/Decimal/Hex to ASCII Binary/Decimal/Hex/Octal conversions Celsius, Fahrenheit and Kelvin D°M'S" conversions Distances Roman numbers NAVIGATION 2 WPs + 2 bearings = new WP 2 WPs + 2 distances = 2 new WPs (Intersections of 2 circles) 3 WPs + 3 distances = new WP (Intersection of 3 circles) Centroid & surface of triangle Centroid of circle through any 3 WPs Coordinatesystem conversions (3800+ systems!) Crossing lines Distance, bearing, middle of 2 WPs Project a new WP WP/Bearing + WP/Distance = new WP DECODING: TABLES Alphabet, Gernreich Alphabet, Latin ASCII Baal horizontal Baal diagonal Bacon Brahmi Chappe Futurama Hexahue HVD code Illuminati cypher Mayan numerical coding Periodical system Pigpen cyphers (3 x) Resistor colorcodes Sign language Signal flags: maritime Signal flags: NATO Signal flags: semaphore Web- & WingDings - and approximately 90 more... DECODING: INTERACTIVE Braille ROT-5/13/47 rotation Cellphone keypad (char to num) Cellphone keypad (num to char) Morse Signlanguage Vigenère NUMBERS Prime numbers Fibonacci numbers Pi (decimals) e (decimals) TEXT Frequency analyses a=1, b=2, a=26, b=25, etc Count characters Count words Hint decrypting OTHER Sudoku solver QR code scanner Barcode scanner UPCOMING FEATURES: - more and other tools depending your input!

Latest Version

5.1.4

Size

12.4 MB

First Released

Jan 20, 2013

Master Every Mystery and Multi-Cache Today

Equip the ultimate offline toolkit for the analytical adventurer. Access 150+ professional navigation and decoding tools with a one-time purchase—no subscriptions, no ads, just the find.

Download on App Store
FAQ

Frequently Asked Questions

Everything you need to know about Geocaching GCTK

What is the primary purpose of the Geocaching GCTK app?

The Geocaching GCTK app provides over 150 tools for solving mystery and multi-caches, performing navigational computations, conversions, decodings, and text analyses, serving as a comprehensive toolkit for geocachers.

Does Geocaching GCTK require in-app purchases for its features?

No, Geocaching GCTK does not require any additional in-app purchases. All features are included with the initial purchase, and future feature additions will also be free of charge.

Can users suggest new tools or features for the Geocaching GCTK app?

Yes, Geocaching GCTK users can suggest new tools or decoding tables by mailing the developers. The number of available tools will grow based on user input and suggestions.

What types of conversions are available in the Geocaching GCTK app?

Geocaching GCTK performs various conversions including Base64/Binary/Decimal/Hex to ASCII, Binary/Decimal/Hex/Octal, Celsius/Fahrenheit/Kelvin, D°M'S" notations, distances, and Roman numerals.

What navigation capabilities does Geocaching GCTK offer?

Yes, Geocaching GCTK offers extensive navigation tools, including calculating new waypoints from multiple inputs, finding intersections of circles, determining centroids, and performing over 3800 coordinate system conversions.

What decoding tables are available in the Geocaching GCTK app?

Geocaching GCTK includes over 90 decoding tables such as Alphabet, ASCII, Bacon, Brahmi, Chappe, Futurama, Hexahue, Illuminati cypher, Mayan numerical coding, Periodical system, and Pigpen cyphers.

Does the Geocaching GCTK app provide interactive decoding features?

Yes, Geocaching GCTK provides interactive decoding tools such as Braille, ROT-5/13/47 rotation, cellphone keypad (character to number and number to character), Morse, Signlanguage, and Vigenère.

Does Geocaching GCTK have a Sudoku solver?

Yes, Geocaching GCTK features a Sudoku solver, accessible under the 'OTHER' category. This tool allows users to solve Sudoku puzzles directly within the application.

Can Geocaching GCTK visualize navigation results on a map?

Yes, Geocaching GCTK can display navigational calculations, including waypoints, distances, and bearings, directly on a map interface to help visualize routes and intersections for geocaching activities.

App information, icons, screenshots, and descriptions displayed on this page are sourced from the Apple App Store and are the property of their respective developers. Download estimates and rankings are based on MWM's proprietary models and may not reflect actual figures. This page is provided for informational and analytical purposes only.

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