I used vault app to hide some pictures and videos.
I just formatted my phone after then I re-installed vault and I am unable to find my pictures and videos.
Is there any way to recover my pictures and videos ?
Well, I think, you can try some data recovery tools. If your lost photos are not rewritten by other data, with a third party tool-Android Recovery Mac, you can easily recover them.
Step 1: Run Android Photo Recovery Mac and Select Files to Recover
Step 2: Connect Your Android Device to Mac and Start Scanning
Step 3: Recover Deleted Pictures from Android on Mac
ANother : Gihosoft free Android data recovery software is quite good at this field, and their software is for free, you can download it and have a try.