Barcode Kingdom - Scan barcodes, Get unique units and items! Build your own kingdom.
iCaching - iCaching is the all-in-one Geocache manager for the Mac.
Codemon - Scan barcodes to find Codemons, battle other players and level them up!
GSAK (Geocaching Swiss Army Knife) - GSAK is the all in one Geocaching and waypoint management tool.
Barcode Knight - The sequel to Barcode Kingdom has finally launched!
c:geo - c:geo is simple yet powerful unofficial geocaching client for Android devices.