Acrosync is the ideal solution to wifi-sync files between your iOS devices and Mac/Linux computers.

Three features make Acrosync stand out from dozens of wifi sync apps in the App Store:
• Acrosync supports whole directory sync, so you don't have to hand-pick files one by one
• You don't need to physically access the remote computer -- just one tap on your device, and your directory will be in sync
• No installation of server software is required on Mac/Linux desktops, servers, network-attached storage, or remote access accounts

Others features include:
• A slick and intuitive interface that allows you to browse files easily and quickly
• Can open a wide variety of multimedia files and documents, such as music, photo, movie, txt, html, pdf, word, excel, powerpoint, keynote, pages, numbers, and many others
• Re-sync is extremely fast as only modified content will be transmitted
• File transfer is encrypted to secure against unsafe networks, and verified using checksums to avoid corruption.
• Support two-way sync as well as exchanging files with other apps, to allows any file to be downloaded, edited (by an appropriate editing app), and then uploaded back.

Computer requirements:
• Mac computers must have Remote Login enabled (System Preferences -> Sharing -> Remote Login).
• For Windows computers, openssh and rsync must be installed, both of which are freely available as independent packages, or as part of cygwin.