Take a look at these two ways in which you can see a deleted message: Download Notification History app from the Play Store. Go to the app tap on the WhatsApp icon to see the deleted messages. Manually go to the notification log, long-press the home screen and choose widgets, you will find a settings widget there. Pull it to the home screen. If this method hasn’t helped you to restore your mistakenly deleted file, move down to Method 3. Method 3: Restore deleted file using Time Machine. If you were careful enough to have set up the Time Machine Backup app prior to when you mistakenly deleted the file, the recovery process will be extremely easy.

1. Accidentally Deleted Photos App Mac
2. Accidentally Deleted App On Mac
3. Photo Vault App Accidentally Deleted

Accidentally Deleted Photos App Mac

Works fine in 10.7.2 as well. Thanks, I’d accidentally hidden an app and couldn’t see how to get it back before now!

PERFECT! I had accidentally hidden XCode.
Thank you very much! Gmail standalone app mac.

Sweet, I was not aware we could finally hide apps, so that is the hint for me since I've wanted this since the store opened! (When was this added? I rarely read release notes, so I wasn't aware of this.) Now I can finally remove all those crap free apps that I tried and quickly decided I didn't want!

Nice, but does anyone know how to completely delete apps from the devices sync-setup lists? I have excessive clutter because I've downloaded (OK, 'purchased' -- but for free) apps only to find that they are crap and so I'll never use them and just want them to 'go away.' However, even 'though they're hidden in the app store, they persist in the sync-setup lists for the iDevices upon which they were installed and later removed.
I've even deleted the applicable '.ipa' files under ~/Music/iTunes/iTunes Media/Mobile Applications/ on the various authorized machines that host the various iDevices but all the apps (i.e., including the 'hidden' ones) still appear in each devices 'Apps' lists in iTunes (i.e., for the Mac-to-device syncing setup).
While it's easy to understand why you shouldn't be able to lose track of items you've paid money for -- and I do see significant value in keeping track of which ones I've tried and rejected -- I don't see any value in continuing to clutter up the sync-setup lists with items I've hidden (and even completely deleted, locally).
[getting off the soap-box] Seems like Apple simply has a bad app-titude when it comes to removal. <word-play intended>

Accidentally Deleted App On Mac

Photo Vault App Accidentally Deleted

Coincidentally, 'cause of something else I was doing, I found the (somewhat obvious) solution -- select the 'Apps' section in iTunes (i.e., on the left sidebar) and you can delete the entries. Du-oh!
<:-} [<-that's a sheepish, red-faced grin with a 'dunce hat']