Take the test of PC on your iPhone. FolderHolder is a fantastic app to manage your files and folders like the Windows Explorer or Finder on your Mac. It has an extremely robust document viewer for files such as PDFs and Microsoft Office documents and many other formats. You can also view images, play your audios or watch videos with in. In addition, you can password-protect it. Sudden entrance of someone onto you can even let you lock the app by mild shaking, so that you can hide all from others anyway. You can sync your files and folders with various ways:

1. Wifi File Sharing
2. iTunes File Sharing
3. DropBox
4. Open from Email
5. Open from any others applications
6. By picking from iPhone (Images, Videos, Audios and Contact)

You could be able to make the following operations over your files and folder:

1. Creation of a new folder on root or within any other folders
2. Copy and move any folders or file to any other folders
3. Open files In by other applications
4. Print images or any documents
5. Rename folder or files
6. Zip file management
7. Email any files
8. Share with Facebook, Twitter and Weibo
9. Save image to Camera Roll, set to Contact or copy

We are now supporting to Open In or with the following file formate: pdf, zip, xls, xlsx, vcf, rtf, txt, ppt, pptx, pages, numbers, key, htm, html, doc, docx, gif, tiff, jpg, jpeg, avi, m4a, mp4, mov, wav, mp3, aac, amr, m4a, wma, mpg, 3gp, flv, mkv. We are coming with even more feature on the next version.