PhotoSweep: Duplicate Cleaner
One photo in every group always stays. An Android photo cleaner that keeps every bit of analysis on your device.
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Why messaging apps leave a second copy of every photo and where those folders are, how far the Android trash really protects you, where the space went when your gallery is far smaller than your storage, how to get back a photo you deleted an hour ago, why a cleaner should never offer Select all, whether deleting on the phone deletes from the cloud, shrinking instead of deleting and what survives, picking the keeper out of a burst, how perceptual hashing finds similar photos, and clearing a phone before you hand it over.
One photo in every group always stays. An Android photo cleaner that keeps every bit of analysis on your device.