When comparing OneDrive vs iCloud, the Slant community recommends iCloud for most people. In the question“What are the best cloud backup services?” iCloud is ranked 16th while OneDrive is ranked 19th. The most important reason people chose iCloud is:
iCloud syncs a users settings and files across a range of Apple hardware making for a simple solution to backup and sync data across ones Apple devices.
Specs
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Pros
Pro Full integration in Windows 10
Once setup OneDrive folder and local folders can be the same slowing for seamlessly integration into Windows OS.
Pro Collaboration via Office 365
If you use Office 365 with OneDrive, you can share a file to edit collaboratively in real time.
Pro Microsoft Office integration
It integrates with Word, Excel, PowerPoint, etc as if you were using OneDrive locally.
Pro Automatic photo uploads from phone
When Android, iOS and Windows Phone users shoot a photo with their phone it is automatically uploaded to OneDrive via app.
Pro Music file syncs with Groove Music
Music files put in the Music folder in OneDrive sync with Groove Music.
Pro No setup for Windows 8/8.1
If you use Windows 8 or 8.1, OneDrive is already built in your system and can be accessed via file explorer.
Pro Synchronisation and backup services
iCloud syncs a users settings and files across a range of Apple hardware making for a simple solution to backup and sync data across ones Apple devices.
Pro Documents in the Cloud
Integrates different office tools such as Keynote or Pages for writing and presentations, etc with iCloud.
Cons
Con Strictest code of conduct
Terms of Service forbid any kind of nudity, or that incites, advocates, or expresses pornography or racism among other things.
Con Becomes slower when it picks up a "Linux" user-agent
This may be intentional by Microsoft to force OneDrive users to use Windows. When OneDrive picks up a "Linux" user-agent it becomes slow whereas when from the same computer and browser it picks up a "Windows" user-agent it becomes considerably faster.
Con Apple devices only
Con Certain file restrictions
Does not allow uploading certain file types.