From Hedonic Software:
Stash is the most advanced private media and download manager in the App Store. Easily secure thousands of photos, videos, and documents. Play them back in full-screen slideshows with enhanced viewing controls. Use the private web browser to download media directly to your library.See below for an extended feature list. Some highlights not found in other apps:+ Built-in tabbed private web browser, download manager.+ Transfer photos, videos, and documents wirelessly from your computer or other mobile devices using web browser or Dropbox.+ Create unlimited separate accounts with optional password, PIN, or TouchID protection, decoy passwords, and hack attempt actions.+ Create hidden accounts that are only revealed with a secret gesture - no one will know you have anything to hide!+ Create unlimited albums, nesting albums to any depth. + Create smart albums that populate themselves based on titles, ratings, and keywords, date taken, last viewed, view count, media type, video duration, and more. + Instant title and keyword search.+ Play slideshows of both photos and videos, including enhanced video controls like slow-mo and loop.+ Hardware content encryption when data protection is enabled on device.+ Boss button gesture to instantly hide what you're doing.+ Much more! Feature list:Import & Export+ Transfer wirelessly via Chrome, Safari, or Firefox browsers.+ Transfer to/from a custom Dropbox folder. + Copy photos and videos to/from Photos, preserving EXIF metadata.+ Transfer to/from your computer with iTunes.+ Import and expand zip, RAR, CBZ, and CBR files.+ Automatically match your Dropbox folders, Photos albums, or the folder structure of your zips and RARs!+ Share to Twitter and Facebook.+ Attach items to emails and texts.+ Copy and paste.+ Open items in other apps.User Accounts+ Create custom accounts with independent content, settings, and passwords.+ Create hidden accounts that are only revealed with a secret gesture.+ Each account can hold thousands of items.+ Transfer between accounts.Library+ Supports major image formats, animated GIFs, iOS video formats, and common documents formats.+ Grid and list views.+ Organize items into albums.+ Customize album covers. + Nest albums to any depth.+ Smart albums auto-populate based on your criteria.+ Order by drag-and-drop, or sort by title, media type, rating, import time, creation date, file size, resolution, aspect ratio, video duration, last viewed, or view count. + View metadata and edit titles, ratings, keywords.+ Bulk assign titles, ratings, keywords.+ Search instantly on titles and keywords. + Customize video thumbnails and extract stills from movie frames. Browser+ Private history, bookmarks, and cookies.+ Tabs.+ Download images and videos directly to your library.+ Option to clear tabs, history, and cookies on exit.+ Browse as iPhone, iPad, or desktop. Slideshows+ Mix photos and videos.+ Pinch and double tap zoom. + Shuffle option. + Jump to any slide.+ Loop, continue to next slide, or pause when videos end.+ Remembers your place in videos over 5 minutes long. + 10 second video jump forward/back buttons - hold down to seek.+ Slow and fast motion video playback. Privacy+ Innocent name ("st@sh") & icon on device.+ Hidden accounts.+ Hardware content encryption when data protection is enabled on device.+ Add a password or PIN code to any account.+ Login with TouchID on supported devices.+ Assign a decoy password that leads to a decoy account.+ Hack attempt actions: open decoy account or delete account after 5 failed password attempts.+ Disable backups on any account.+ "Boss button" gesture instantly hides activity.