DiskDigger

DiskDigger is an app to recover pictures on your Android phone that you thought were long gone. If you accidentally deleted a photo, or lost them when uninstalling an app, you can recover them and save them again to your device's memory.

Using DiskDigger is very simple: you have to select the partition on your Android from which you want to try to recover photos and press the 'scan' button. This process can take from a couple of seconds to several minutes, depending on the size of the partition. As it runs, you can see the pictures the app finds.

It's important to keep in mind that this free version of DiskDigger lets you recover only files in JPG and PNG formats. The Pro version lets you recover the following formats: MP4, MP4A, 3GP, MOV, GIF, MP3, AMR, WAV, TIF, CR2, NEF, DCR, PEF, DNG, ORF, DOC, DOCX, XLS, XLSX, PPT, PPTX, PDF, XPS, ODT, ODS, ODP, ODG, ZIP, APK, and EPUB.

DiskDigger is an outstanding file recovery app that not only works, but does so in a very simple way. Unlike similar apps, it will let you recover lost images with no trouble.