When comparing Backblaze vs AOMEI Backupper, the Slant community recommends AOMEI Backupper for most people. In the question“What are the best backup programs for Windows?” AOMEI Backupper is ranked 4th while Backblaze is ranked 6th.
Specs
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Pros
Pro Beginner-friendly defaults
The default configuration includes everything except for system files to be backed up. That also includes external USB drives. This will work for most people. It can, of course, be customized to each person's liking.
Pro No file size or traffic restrictions
There are no limitations of file size or amount of data you can upload. The $5/mo plan gets you unlimited cloud storage.
Pro Excellent restoration performance
Backblaze creates a zip file of all your files for you to download, thus decreasing the amount of data you need to download and increasing the speed of the download since it's one connection instead of multiple that need to be opened and closed for a list of files.
Pro Secure
AES encrypted files are transferred over a secure SSL connection.
Pro Download any backed-up files from any web browser
Some backup services like Carbonite require a client to be installed to restore files. Backblaze allows you to login and download any or all files from a web browser, meaning it also serves as an ad-hoc cloud storage platform.
Pro Users can order a physical copy of their data
You can have a flash drive or an external hard drive delivered to you. They cost $99 and $189 respectively.
Pro User Friendly
Pro Supports multiple backup methods
In addition to full backup the program supports differential and incremental backup. And merging of incremental backups can be done via the command line.
Pro Easily clone a drive
Cloning a drive can be done without making a separate system image and allows the user to create partitions on the second drive in order to limit what space is used for the clone.
Cons
Con No Linux support
There's no Linux client for Backblaze.
Con Pay extra to keep deleted files permanently
Additional $2/Month plus $0.005/GB/Month for files updated, changed, or deleted more than one year ago.
Con Backblaze does not support network (NAS) drives
If you use a thing like Drobo, Backblaze will not back it up.
Con Buggy
Con No way to manually pause a backup
The backup process can be canceled or it can automatically pause if it encounters an issue (like the destination not having enough space for the backup), but there's no way to pause the process manually.
Con Feeling uncomfortable that it's not going to restore when really needed
Con Open image requires mounting virtual drive
Con Custom size only for pro users
You cannot set custom size for backup files on free version.