Check your answer before you drive

Most puzzle caches include a link to a checker that tells you whether your final coordinates are right. Typing coordinates into a checker on a phone is fiddly, and one wrong digit sends you to the wrong place. Paste the checker link from the cache page and your coordinates, and CacheCrack builds a link that opens the checker with them already entered.

GeoChecker, geocheck.org, geocheck.eu.org and Geotjek accept coordinates in the link, so they are filled in for you. Certitude, GC Apps, GPS-Cache, Geocache Planer and the Geocaching.com solution checker do not, so CacheCrack opens them and you type the answer there. Put several guesses on separate lines to get a link for each.

With case files

Save the checker link in a case file. Then the case's final coordinates and the formula solver both show a Check button that goes straight to the checker.