When you’re looking for an online backup service, price is obviously a key factor. But features are just important too: do you want a simple backup and restore service, or would you like to be able to use your cloud-based storage to help keep folders on multiple computers synchronised? Are you happy for the online backup tool to be tied to a single PC, or would you like your backup space to be available to all of the computers in your household? How about file versioning – whereby multiple versions of files are backed up? Wuala, from hard-drive manufacturer Lacie, does all of this and more.

The service comes in free and pro versions: the free version offers 1GB of storage space for backup purposes; you’ll need to upgrade to the Pro version for synchronising and file versioning features, but the good news is that this doesn’t have to cost you anything. Wuala offers a cheap 10GB option – perfect for those looking for a sync tool with a decent wodge of cloud storage, but you can get by without spending a penny: if your computer is connected via a broadband connection and online for most of the day, and you’re willing to give up storage space on your computer to Wuala, it’ll allocate the equivalent storage space online for you to use for free – and upgrade you to the Pro version to boot.

Wuala’s Android app does much as you’d expect it to: basically gives you access to all of your backed up files on Wuala. Browse it as you would any other folder tree, then select a file for viewing, at which point it’ll be downloaded. Once complete, you’re shown a preview which you can then share with others, or opt to save it permanently to your Android device for future viewing when offline.