Cloud backup services are the OG of online storage. Long before internet bandwidth allowed you to work online, there were services dedicated to providing that all-important third copy in the backup triad: the original data, a copy of the data, and a copy of the data in a remote location. The hallmark of these services are client apps that upload (and restore if necessary) data to from the remote server farm.
![](https://b2c-contenthub.com/wp-content/uploads/2024/06/backblaze-for-online-how-we-test-1.png?w=1200)
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Most people are already using a cloud backup service, though they may not think of it that way. Google Drive, iCloud, and OneDrive all serve as backup repositories for Android, Apple, and Microsoft products, respectively. Even if you don’t use them, they’re there.
What we look for in cloud backup services
Our basic goal when reviewing a cloud backup service is to determine its suitability to the task, ease of use, and compatibility across platforms. As to what specific criteria we apply….
Backup and sync
All services we classify as cloud backup provide local apps that handle the backup chore, often one-way sync. If they don’t, we cover them under the umbrella of online storage.
Versioning and retention policies
If a cloud backup service offers one-way sync for backup, it should be keeping older versions of changed files. How many, and for how long can be a major factor in our rating — it’s not always forever.
Capacity
Obviously, you want the most room you can get for your data, depending on the size of your stash of course. However, users such as yours truly, working with large multimedia files, may need a lot more. For instance, the unlimited storage offered by Backblaze and Sync.com. We look for tiers that will suit any data scenario, which brings the discussion to…
Price
We could’ve listed price as number one given that how much you pay for the amount of space you need factors heavily into our ratings. All things being equal, the cheaper the gigabyte (free being the best!), the higher the rating. Things are not always equal.
![](https://b2c-contenthub.com/wp-content/uploads/2024/05/Screenshot-2024-05-24-at-10.36.01-AM.png?w=1200)
<div class="lightbox-image-container foundry-lightbox"><div class="extendedBlock-wrapper block-coreImage undefined"><figure class="wp-block-image size-large enlarged-image"><img decoding="async" data-wp-bind--src="selectors.core.image.enlargedImgSrc" data-wp-style--object-fit="selectors.core.image.lightboxObjectFit" src="" alt="" class="wp-image-2344959" width="1200" height="850" loading="lazy" /><figcaption class="wp-element-caption">Icedrive’s menu shows how to access older versions of your files.</figcaption></figure></div>
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Online editing
Storage services such as OneDrive/Microsoft 365 and Google Drive/Docs offer full-blown office suites that allow users to work online. We’re not expecting that from a dedicated cloud backup provider, but it’s nice when it occurs.
Online preview
With services that offer limited or no online editing, there’s usually a preview feature. How many file types are supported, and how well they display (video is often problematic) is something we check.
![](https://b2c-contenthub.com/wp-content/uploads/2024/05/Google-Drive-Web-Interface.png?w=1200)
<div class="lightbox-image-container foundry-lightbox"><div class="extendedBlock-wrapper block-coreImage undefined"><figure class="wp-block-image size-large enlarged-image"><img decoding="async" data-wp-bind--src="selectors.core.image.enlargedImgSrc" data-wp-style--object-fit="selectors.core.image.lightboxObjectFit" src="" alt="" class="wp-image-2344860" width="1200" height="637" loading="lazy" /><figcaption class="wp-element-caption">Google Drive’s online interface. It’s the default cloud backup for Android devices but offers no true backup client for Windows.</figcaption></figure></div>
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Operating system integration
Carbonite‘s client with its Windows Explorer integration is one of our favorite cloud backup clients. So much so, we wish it could be used with other storage and services. We don’t count clients such as Dropbox, Google Drive, OneDrive, iCloud etc. that integrate as folders or drives, but don’t provide dedicated backup functions.
Of course you can still use these storage services for backup, but only by moving your data onto the integrated folder or drive. The distinction is fine, but you can find coverage of these services in our online storage reviews.
Further reading: Best online backup services
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