DropboxDropbox syncs files across devices in real time and maintains version history for up to 180 days95.0NEW$9.99 per month
Google DriveGoogle Drive offers real-time collaborative editing with up to 100 simultaneous editors per document92.7NEWFree
Microsoft OneDriveOneDrive includes advanced ransomware detection and file restore capabilities for security-conscious users90.3NEWFree
Sync.comSync.com uses zero-knowledge encryption, meaning even Sync.com cannot access user files88.0NEW£4.08/month (200GB)
TresoritTresorit is headquartered in Switzerland and complies with strict European data protection standards85.7NEWBasic from £8/month; Family from £144/year
BoxBox serves over 100,000 businesses and maintains FedRAMP authorisation for US government use83.3NEW$15 per user per month
NextcloudNextcloud is fully open-source and can be deployed on your own servers for complete data sovereignty81.0NEWFree
Amazon DrivePrime members receive unlimited photo storage and 100GB of document storage through Amazon Drive78.7NEWFree with Prime
iCloud DriveiCloud Drive provides end-to-end encryption for files and integrates with all Apple applications76.3NEWFree (5GB), £0.79/month (50GB)
MegaMega offers 20GB free storage, double that of most competitors, with user-controlled encryption keys74.0NEWFree
Dropbox offers cloud storage with intelligent file syncing, comprehensive sharing controls, and seamless integration with thousands of third-party applications. It supports real-time collaboration and version history tracking across all major platforms.
Google Drive provides cloud storage with built-in document creation, real-time collaborative editing, and deep integration with Gmail and Google Workspace. It offers advanced search capabilities and automatic backup of Google devices.
OneDrive integrates seamlessly with Microsoft 365, offering cloud storage with version control, collaborative editing in Office applications, and advanced ransomware detection. It provides file restore capabilities and shares integration with Teams.
Sync.com provides zero-knowledge cloud storage with end-to-end encryption for all files, advanced permission controls, and secure file sharing. It offers version history, mobile apps, and enterprise-grade security without accessing user data.
Tresorit delivers end-to-end encrypted cloud storage with zero-knowledge architecture, advanced user management for teams, secure link sharing, and compliance with GDPR and HIPAA. It supports granular permission controls and audit logging.
Box provides cloud content management with advanced collaboration features, sophisticated permission systems, workflow automation, and integration with major enterprise applications. It offers security controls tailored for large organisations and regulated industries.
Nextcloud is an open-source, self-hosted alternative allowing complete data control, customisation, and deployment options. It includes file syncing, collaborative editing, calendar, and contacts, with no vendor lock-in or reliance on external servers.
Amazon Drive offers cloud storage integrated with Prime membership, Amazon Photos for photo backup, and cross-device syncing. It provides unlimited photo storage for Prime members and straightforward sharing options for documents and files.
iCloud Drive provides cloud storage deeply integrated with Apple devices, offering automatic backup, file syncing across Mac, iPhone, and iPad, and collaboration features through iCloud shared folders. It integrates with iWork applications and maintains device security.
Mega offers cloud storage with user-controlled end-to-end encryption, generous free storage (20GB), simple file sharing with expiring links, and cross-platform support. It prioritises user privacy whilst maintaining accessible pricing and functionality.
Zero-knowledge encryption means the service provider (even Sync.com or Tresorit) cannot access your files because encryption keys are controlled by you alone. Standard encryption like OneDrive or Google Drive encrypt files in transit and at rest, but the provider retains ability to decrypt and access content with appropriate legal processes.
Google Drive is optimal for real-time collaboration, supporting simultaneous editing by 100+ users with instant synchronisation. Microsoft OneDrive with Microsoft 365 offers similar functionality within the Office ecosystem. Dropbox and Box provide collaboration features but are less optimised for live document editing.
Most personal users need 100-200GB annually unless storing videos. Free tiers (15-20GB) suit light users. Google Drive's 100GB tier (£1.99/month) covers typical personal needs. Heavy video users or photographers should consider 1-2TB plans. Storage needs depend entirely on file types, backup frequency, and device count.
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