Cloud Providers for iOS Devices

22 02 2013

There is a rapidly increasing number of Cloud-Providers. You have to decide which fits best. Otherwise your data will be spread over the world and its hard to find out where they are.

I checked free accounts of 12 providers and their usability on Apple’s iOS-Devices as well as their PC-Client versions since more than one year. This article describes my experiences with all the free offers.

Summary of the main test criteria:

1 iOS-Client-Software available

  • to display the frequently used file formats like PDF, TXT, CSV, XLSX, DOCX, iWork-Format (.numbers, .keynote, .pages)
  • to manage files and folders
  • to get links for sharing files
  • to share multiple files via a single link

2 PC-Client-Software available

  • to permanently sync local folders on Mac/PC with cloud folders
  • to set up the sync direction (two way or one way syncing)

3 Encrypted transfer of data between local device and cloud storage

  • to avoid the usage of special apps for encryption like BoxCryptor for Dropbox
  • to securely manage data in transit (while transmitted between the provider and the device) and at rest on the cloud storage

4 Amount of free space

  • should not be less than 5 GB
  • reasonable prices for account updates to higher capacities

5 WebDAV-Support

  • to set up an additional connection other than the native provider’s native app via administrative tools like USB Drive, GoodReader, ReaddleDocs, …
  • to assign shares to a drive letter on a PC and work with this ressources within any application (e.g. saving documents from iWork directly to the cloud

6 Performance, Activity, Usability

  • immediate syncing with high performance
  • plain activity indicators on Mac/PC for sending and receiving files on Mac/PC
  • available context menu on the Mac/PC icon with all necessary functions for accessing local sync folders, preferences, recently updated files, etc.

7 History

  • availability of a file history
  • availability of restoring deleted files from the trash within a reasonable timeframe

Main facts …

Cloud Free WebDAV Encrypt Syncing
iDrive 10 GB yes no multiple, selectable folders
Dropbox 2 GB no no one folder+subfolders

iDriveSync and Dropbox provide powerful apps for Mac/PC as well as iOS devices.

Dropbox and iDriveSync sharing options on iOS devices are:
E-Mail, Message, Facebook Message, Post to Facebook, Tweet

A special functionality of Dropbox is the ‘Camera Upload’ which uploads every photo you made with your camera on an iOS device.

Both providers do not support encryption in transit.
If the provider is compromised your data will be unsafe.
Except WUALA (CH) no provider fulfills the necessary requirements for safe transfer and storage.
Admittedly cloud providers ensure encryption but the Terms and Conditions of nearly all providers authorize them to review the data or pass them to authorities on demand.

Dropbox currently does not support WebDAV whereas iDrive does. That must not be a disadvantage because the PC-Clients support convenient syncing with local folders and most of the iOS-Tools (like USB Disk, GoodReader, Documents, …) support direct access to the storage of well-known providers.

If using the iWork suite intensively Dropbox is not the best candidate as there is no support for WebDAV. If iCloud syncing for iWork is turned on (Settings – iCloud – Documents + Data) they are admittedly transferred to other iOS devices but only those using the same Apple ID. So sharing is only supported by mailing the document as an attachment.

iDriveSync supports WebDAV and therefore can be configured in iWork using the ‘Copy to WebDAV’ feature. What you have to do is to enter the server address (http://dav.idrivesync.com), your credentials and to share the iDriveSync folder with your colleagues.

Both iOS apps support the display of the above mentioned file types except CSV files.

Another benefit of iDriveSync vs. Dropbox is the pricing (1.38 $ /50 GB/y vs. 3.75 $ /50 GB/y).

So the overall winner is iDriveSync.

Useful links …

Sharing Multiple Files on iDriveSync

Costs of Cloud Storages

Risky Free Clouds

Which Cloud Provider fits best

Some impressions of the UI …

20130113-095425.jpg


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