Ranked by uptime

The most reliable cloud storage

Cloud storage and file sharing services, ranked by how much they actually go down. Every figure comes from each app’s own status page.

WeTransfer leads right now, with no reported problem at all in the last 90 days. Egnyte and Sync.com come next.

#AppNowUptimeProblem-freeProblemsRecordWebsite
1WeTransferWorking normally100%100%090 daysVisit WeTransfer
2EgnyteWorking normally100%99.87%390 daysVisit Egnyte
3Sync.comWorking normally100%99.65%190 daysVisit Sync.com
4Google DriveWorking normally100%99.38%290 daysVisit Google Drive
5DropboxWorking normally100%99%490 daysVisit Dropbox
6BoxWorking normally99.9%93.67%2090 daysVisit Box
–iCloudWorking normally100%100%00 daysVisit iCloud

Uptime is the share of time without a major outage. Problem-free is the share of time without any reported problem. Both come from each app's own status page over the last 90 days, or as much of that as its record covers. Apps with less than 14 days of record are listed last, unranked.

How the ranking works

Apps are ranked first by uptime, the share of time without a major outage. Ties go to the app with more time free of any reported problem, then to the one with fewer problems. Every figure comes from the app’s own status page, so no app can pay to move up, and the ranking changes by itself as new problems are reported. See how Appys checks apps.

Some status pages only keep their last few weeks of problems, so each app’s record shows how many days it covers. Percentages make records of different lengths fair to compare, and every record grows to the full 90 days as Appys keeps reading.

What the figures can’t tell you

A status page only shows what a company chooses to report. Small problems, or ones that hit only some users, sometimes never get posted, so treat these figures as the least that went wrong, not the most. If an app isn’t working for you right now, see what’s down right now.

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Email us once with the app’s name and we’ll tell you when it reports a major outage, and when it’s working again. No forms, no account, no password.

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You sign up by sending one email, so nobody else can use your address. Every alert has a stop link. Add "all problems" to the subject to hear about small problems too.