dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
GPS Status & Toolbox - Display your GPS and sensor data: Shows the position, number and signal strength of GPS satellites.
Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.
iHunter Alberta - iHunter Alberta is an amazing mobile application offered by Inside Outside Studio Inc.
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.
Trail Sense - An Android app which uses your phone's sensors to assist with wilderness treks or survival situations.