GCTK has been developed to help you solve the many mystery caches that are available throughout the world. Not all puzzles are that obvious or easy to solve and this app can be of great help to do so! The developer is a geocacher himself; he knows what problems may arise when trying to solve mystery caches which was the main reason to start development of the app.

Geocaching Tools features: CONVERSIONS Base64/Binary/Decimal/Hex to ASCII Binary/Decimal/Hex/Octal conversions Celsius, Fahrenheit and Kelvin Coordinatesystems D°M'S" conversions Distances Roman numbers NAVIGATION 2 WPs + 2 bearings = new WP 2 WPs + 2 distances = 2 new WPs 3 WPs + 3 distances = new WP Centroid & surface of triangle Centroid of circle through any 3 WPs Crossing lines Distance, bearing, middle of 2 WPs Project a new WP WP/Bearing + WP/Distance = new WP DECODING Braille Caesar rotation Cellphone keypad Decode Morse Decode Vigenère Hint/ROT decrypting Pigpen cypher Resistor colorcodes Sign language Signal flags: maritime Signal flags: semaphore and more than 100 other decoding tables ! TEXT Frequency analyses a=1, b=2, a=26, b=25, etc Count characters Count words ROT decrypting OTHER Sudoku solver