Powerful engine designed for high performance

Works as a regular application or as a background process: option in preferences

Compatible with many online services and web servers: list available on Frequently Asked Questions section

Support many protocols by default : FTP, SFTP, AFP, Amazon S3, WebDAV

Powerful assistant integrated to create / edit your backup settings

Visual feedback allows you to survey the progress of a backup

Twin is the most flexible online backup solution for Mac OS X, compatible with most Internet servers:
FTP, FTPS, SFTP, WebDAV, Amazon S3, MobileMe. It even supports offline backups to external drives.

Twin is a true Mac product that preserves Finder info, resource forks, ACLs, Privileges and comes
with an elegant user interface and a powerful assistant. It also provides numerous high-end features
like AES-256 encryption, efficient bz2 compression, powerful exclusion rules and scheduler, support
for splitting large files during network transfers, network-error recovery, individual digital signature
for backed up files, multi-cores machines optimization and much more!

Twin is the best backup solution for Mac OS X users who already have access to online storage
(web hosting, work servers, MobileMe...), or who want to buy their own dedicated online storage
(Amazon S3, Bingo Disk, Online Storage Solutions), or even users who simply want more control
and advanced features than other backup products allow.



Why backup your data online?
We live today in a digital world: many aspects of our life are preserved on computers from your address
book to all your family pictures or work projects. Computers get stolen, hard disks suddenly fail, or more
likely you can simply make a mistake and erase much of your critical data from your computer.

You can do backups to CDs, external drives or other computers in your house or workplace, but that
doesn't provide you so much extra protection: you're still putting your eggs in the same basket.
The real solution is to backup your most critical data (personal & work documents, iPhoto Library...)
to one or more servers on the Internet. Online data storage is finally cheap enough so that it is now
possible to store a copy of all your essential data on remote servers, and Twin is the perfect solution for this.

If you are convinced of the need to back up your data, but already have Time Machine enabled,
you might wonder why you should have another backup. The answer is that Time Machine is a great
solution as a first safety net: it backups absolutely everything and allows you to go back in time
to retrieve older versions of files, but it can only go so far...

If you backup to a regular external drive, it may fail mechanically after some time
(some studies show up to 4% chance of annual failure rate) making your backup unusable.
If you backup to a small portable drive, these are easy to drop and damage, again making your backup
unusable. Or simply, if you're traveling and your Time Machine hard drive is not available, how will you
protect your latest work documents or newly taken family pictures, in case you erase them
by mistake, or if your laptop gets stolen? Even if you already use Time Machine, having an online backup
of your most essential data can provide  the extra security and peace of mind so you don't end up
loosing part or all of your digital life due to unfortunate events.

INTUITIVE
Twin features an intuitive user interface and also includes a powerful Backup Assistant to make it
even easier to create or update backups. Twin offers a very easy-to-use restore interface: restore
the entire backup at once or navigate to the file or directory you want to want to restore and you're done.
Twin provides detailed and easy-to-read reports of every backup operation, so you can know exactly
what is going on.

RELIABLE
Twin was built from the ground up to reliably handle very large data sets (hundreds of gigabytes
and dozens of thousands of files). Twin was also designed to be robust and reliable in case of network
errors or even interrupted backups. All backed up files are grouped in segments of a maximum size
(25 Mb typically) or split if necessary, to ensure faster network transfers, smaller backup update times
and increased reliability. Twin fully preserves file metadata: creation and modification dates, Finder info
(e.g. label or Spotlight comments), UNIX permissions, ACLs, extended attributes...

POWERFUL
Twin is compatible with most online servers: it supports WebDAV (over HTTP or HTTPS),
AFP, SMB, FTP, FTPS, SFTP, Amazon S3 (over HTTP or HTTPS) or even Apple iDisk.
Unnecessary data like system cache files or iPhoto Library cache are automatically excluded from backups,
and Twin also provides an easy-to-use interface to exclude custom selected files or entire directories as well.
If more control is needed, you can build arbitrarily complex exclusion rules e.g. all files greater than 10 Mb
created before a given date. Twin supports automated backups: you can have backups run automatically
every given days or every few hours. If you backup to an external drive or USB key, you can have the
backup start automatically whenever you plug it to your computer.

SECURE
You can optionally protect the privacy of your data with on-the-fly top-grade AES-256 encryption
(approved by the US Government to protect classified information). If you choose to do so, not a single
byte of your backup data leaving Twin will be readable by strangers. Most competitors backup software
still use 15 years old BlowFish encryption.

OPTIMIZED
The Twin backup engine is fully optimized and can run several backup operations in parallel, as well
as process and transfer multiple data files simultaneously in the same backup (this feature requires a
Mac with multiple processors). However, when active, the Twin backup engine runs in low-priority
mode so that it doesn't slow down your computer while you're using it, and you can even limit
the maximum network bandwidth it uses. Twin uses efficient bzip2 compression to reduce the size
of the backed up data, but is also smart enough not to waste time trying to re-compress already
compressed files (JPEG images, movies, Finder archives…).

Universal Binary
This product is using the universal binary technology built by Apple. This will allow the application to run on any Mac,
containing either a PowerPC chip or an Intel chip, without any speed slowdown, or program emulation.

Modern Code / Experience
Built in Cocoa and Objective C, the application supports by default all Mac OS X technologies. We care about the user experience,
details and nice interfaces compliant to Apple Human Guidelines.

Staying In Touch
We love hearing from all of our customers, new and old. Let us know what you're up to and we'll do the same! This product works
because it's built by people like you for people like you. Need a feature? Request it. We're always listening.