Proton Drive provides cloud storage where, according to the provider, files are encrypted on the device before upload. File sharing and online documents and spreadsheets are part of the presented offering.
Sources reviewed on 20 October 2026 · No hands-on test
Users who want to combine encrypted file storage with sharing and online document work.
Upload a non-sensitive file, open it on a second device and create a sharing link with your chosen restrictions. Then revoke the link and check what the recipient can still open. Test document editing separately from ordinary file synchronisation.
A suggested task for you to try; not a Perkufo hands-on test report.
These products share the primary category. Compare the specific task: they are not automatically interchangeable.
Dropbox provides file storage, synchronisation and collaboration. Its official feature overview describes access through computers and mobile devices, shared content and connections to other work environments.
Google Workspace brings together online documents, spreadsheets, presentations and collaboration through Drive and Meet. Business subscriptions can also include email on your own domain; the free Essentials Starter offering uses your existing business email address.
Microsoft 365 combines applications for documents, spreadsheets and presentations with collaboration services. Free web apps and paid business packages differ in areas including desktop software, business email and administration features.
Nextcloud Files is file synchronisation and sharing software with options to manage the server yourself. The provider presents desktop and mobile apps alongside the web environment.
Slack organises team conversations into channels for projects, topics or departments. Messages, shared files, app connections and short audio or video calls bring daily collaboration together.
