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Geocaching GCTK

150+ geotools to help you !
Age Rating
4+
Years
Developer
Language
ES
+4 More
Size
13.0
MB

Information

Apple ID593639170
Bundle IDRijkeSoftware.GCTKiPhone
SellerSeller
Min iOS14.0
Min macOS11.0
Device familiesiphone, ipod
Released2013-01-20
Copyright© 2026 RijkeSoftware
Privacy policyLink ↗

Preview 1 platform

iPhone 9 images

iPhone screenshot
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What’s New Version 5.1.5

Bugfix release

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!

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 25 versions

Build 882597668v5.1.52026-02-20 00:09:36
Bugfix release
Build 877607781v5.1.42025-08-28 13:22:45
Maintenance release
Build 875791408v5.1.32025-06-22 21:23:23
Bugfix for Navigation, Projection when calculating in feet.
Build 871259128v5.1.22024-12-19 13:37:33
Removed What3Words due to quota exceedances
Build 867759926v5.1.12024-07-26 11:29:10
Bugfix in decodingtables
Build 867462962v5.1.02024-07-17 14:25:37
- Added QR- & barcode scanner for photos library (Idea of David W.) - Quickmenu repairs and corrections - Credits localized - Minor layout changes
Build 867330412v5.0.12024-07-09 09:33:55
- Total new look for better use and readability - Decoding tables overview now shows examples - Improved navigational calculations, using elliptical earth calculations now (not all calculations yet) - Many layout changes - Minor bugfixes
Build 867062295v5.0.02024-07-07 15:52:56
- Total new look for better use and readability - Decoding tables overview now shows examples - Improved navigational calculations, using elliptical earth calculations now (not all calculations yet) - Many layout changes - Minor bugfixes
Build 864834116v4.7.42024-03-31 12:13:25
- bugfix for crossing lines - small improvement in WGS84 coordinate entry
Build 861904105v4.7.32023-12-01 23:25:55
- Bugfix for copying current GPS coordinate into coordinate textfield - Removed ° sign throughout entire app to prevent copy/paste interaction problems with other apps.
Build 860957484v4.7.22023-10-25 20:13:24
Maintenance release
Build 860452129v4.7.12023-10-06 20:20:30
Bugfix & minor code cleanup
Build 846958156v4.72022-02-01 14:42:58
- Added calculation for antipodal coordinates
Build 845917951v4.6.12021-12-18 01:28:49
New version with explanation text improvements
Build 845321520v4.62021-12-06 01:10:14
- Explanation added, use the i-button to view - Some minor improvements in the layout of some screens
Build 844807908v4.52021-10-20 20:48:23
Added Gade calculation
Build 844486698v4.4.12021-10-10 09:56:09
- when selecting QR/barcode output, keyboard would show up unnecessarily - added safeguard for incorrect QR/barcodes
Build 844352213v4.42021-09-30 09:13:31
- Corrected radius calculation in Circle through any 3 WPs - Corrected Sudoku layout - Redesigned sharing and mapview of navigation results
Build 842737613v4.32021-06-20 16:54:56
Added Geohash to navigation
Build 842000075v4.2.22021-04-29 21:50:25
Bugfix: keyboard wouldn't remove after entering search text in Coordinatesystem Conversions Layout constraint irregulaties corrected in several screens.
Build 840004678v4.2.12021-01-13 01:19:32
Bugfix release due to possible double entries when moving items in quickmenu
Build 837383437v4.22020-08-19 20:19:29
- Changed QR/Barcode scanner layout - QR/Barcode type is shown now - Small layout changes
Build 834492687v4.1.12020-01-27 21:11:06
Bugfix release; quickmenu didn't function properly
Build 832229871v4.12020-01-23 14:44:58
- Added menu option My quickmenu - Made coordinate entry easier/faster - Coordinate entry now up to 4 decimal places - Improved Vigenere decoding - Improved full screen layouts
Build 831040089v4.0.12019-04-19 18:24:18
Bugfix for input; decimal figures were in some cases not included in the calculations
App price

Price history by region

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Availability 21 of 21 storefronts

RegionLanguagePriceRatingsAvgVersion
US en-USUSD 1.99114.05.1.5
BG en-GBEUR 1.9905.1.5
BN en-GBUSD 1.9905.1.5
BS en-GBUSD 1.9905.1.5
BT en-GBUSD 1.9905.1.5
DO es-MXUSD 1.9905.1.5
EE en-GBEUR 1.9905.1.5
EG en-GBEGP 99.9905.1.5
IQ en-GBUSD 1.9905.1.5
JM en-GBUSD 1.9905.1.5
JO en-GBUSD 1.9905.1.5
LB en-GBUSD 1.9905.1.5
LY en-GBUSD 1.9905.1.5
NI es-MXUSD 1.9905.1.5
OM en-GBUSD 1.9905.1.5
RO en-GBRON 9.9905.1.5
SI en-GBEUR 1.9905.1.5
TT en-GBUSD 1.9905.1.5
UZ en-GBUSD 1.9905.1.5
VG en-GBUSD 1.9905.1.5
YE en-GBUSD 1.9905.1.5

Change log 29 changes · DO

releaseNotes updated
Bugfix release
description updated
150+ tools and decoding tables to help you solve mystery- and multi-caches and make navigational computations, conversions, decodings and text analyses. The num
subtitle updated
150+ geotools to help you !
name updated
Geocaching GCTK
Version 5.1.5 released
Bugfix release
Version 5.1.4 released
Maintenance release
Version 5.1.3 released
Bugfix for Navigation, Projection when calculating in feet.
Version 5.1.2 released
Removed What3Words due to quota exceedances
Version 5.1.1 released
Bugfix in decodingtables
Version 5.1.0 released
- Added QR- & barcode scanner for photos library (Idea of David W.) - Quickmenu repairs and corrections - Credits localized - Minor layout changes
Version 5.0.1 released
- Total new look for better use and readability - Decoding tables overview now shows examples - Improved navigational calculations, using elliptical earth calculations now (not all calculations yet) - Many layout changes - Minor bugfixes
Version 5.0.0 released
- Total new look for better use and readability - Decoding tables overview now shows examples - Improved navigational calculations, using elliptical earth calculations now (not all calculations yet) - Many layout changes - Minor bugfixes
Version 4.7.4 released
- bugfix for crossing lines - small improvement in WGS84 coordinate entry
Version 4.7.3 released
- Bugfix for copying current GPS coordinate into coordinate textfield - Removed ° sign throughout entire app to prevent copy/paste interaction problems with other apps.
Version 4.7.2 released
Maintenance release
Version 4.7.1 released
Bugfix & minor code cleanup
Version 4.7 released
- Added calculation for antipodal coordinates
Version 4.6.1 released
New version with explanation text improvements
Version 4.6 released
- Explanation added, use the i-button to view - Some minor improvements in the layout of some screens
Version 4.5 released
Added Gade calculation
Version 4.4.1 released
- when selecting QR/barcode output, keyboard would show up unnecessarily - added safeguard for incorrect QR/barcodes
Version 4.4 released
- Corrected radius calculation in Circle through any 3 WPs - Corrected Sudoku layout - Redesigned sharing and mapview of navigation results
Version 4.3 released
Added Geohash to navigation
Version 4.2.2 released
Bugfix: keyboard wouldn't remove after entering search text in Coordinatesystem Conversions Layout constraint irregulaties corrected in several screens.
Version 4.2.1 released
Bugfix release due to possible double entries when moving items in quickmenu
Version 4.2 released
- Changed QR/Barcode scanner layout - QR/Barcode type is shown now - Small layout changes
Version 4.1.1 released
Bugfix release; quickmenu didn't function properly
Version 4.1 released
- Added menu option My quickmenu - Made coordinate entry easier/faster - Coordinate entry now up to 4 decimal places - Improved Vigenere decoding - Improved full screen layouts
Version 4.0.1 released
Bugfix for input; decimal figures were in some cases not included in the calculations
expanded screenshot