While backup programs like BackBlaze and cloud storage services like Dropbox are both online backups, they work in fundamentally different ways. Dropbox is designed to sync your files between PCs, while BackBlaze and similar services are designed to backup large amounts of files. BackBlaze will keep multiple copies of different versions of your files, so you can restore the file exactly as it was from many points in its history. And, while services like Dropbox are free for small amounts of space, BackBlaze’s low price is for as big a backup as you want. Depending on how much data you have, one could be cheaper than the other.