Comparison of Free Online Sync Providers
| Spideroak | Ubuntu One | Dropbox | SkyDrive Synced Storage | iDriveSync | LiveKive (AVG) | |
| Free Storage | 2GB | 2Gb | 2Gb/8GB** | 5GB | 5GB | 5GB |
| Additional Storage Costs | 100GB/$100 | 20GB/$29.99 | 50GB/$99 100GB/$199 | Unlim/$59.88 | 25GB/$49.99 Unlim/$79.99 | |
| PC Client | Yes | Yes(Beta) | Yes | Yes | Yes | Yes |
| Linux Client | Yes | Yes | Yes | No | No | No |
| Mac Client | Yes | No | Yes | Yes | Yes | Yes |
| Android Client | Yes | Yes* | Yes | No | No | Yes |
| iPhone Client | Yes | Yes* | Yes | No | No | Yes |
I personally go with Dropbox as I find the client to be small and pretty unobtrusive. But I’ve not used the others intensively. I’ll leave you to have a try and there is 21GB or more to play with!