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Comparison of online backup services

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This is a comparison of online backup services.

Comparison

Provider Win.1 Linux1 Mac1 Android1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14
Acronis Yes No No No No Yes No 250 Gb No Yes No No Yes USA, Europe No No limit Yes
ADrive Yes Yes Yes Yes Yes No No Yes Yes, only paying users No No Yes USA 50 GB 2 GB
AltDrive Yes[1] Yes Yes Yes Optional[2] Yes Yes No Yes USA No limit Yes
ASUS WebStorage Yes Yes (only 32 bit) Yes No No Yes Yes No Yes Yes Yes Yes USA, ASIA 2 GB 500 MB Yes
Backblaze Yes No Yes Yes[3] Optional[4] Yes Yes No Yes Yes USA ? No limit Yes ?
Barracuda Backup Service Yes Yes Yes Yes[5] No No fee per computer No Yes Yes No Yes No Yes USA, APAC, Europe No ?
Bitcasa Yes[6] Yes Yes Yes Bitcasa cannot decrypt data, but uses convergent encryption rather than personal encryption15 [7] Yes Yes No Yes Yes Yes Yes USA No limit[8]
Box Yes No Yes Yes Yes Yes[9] No[10] Yes Yes Partial Paid users only Yes USA 5 GB 100MB (Free) 2GB (Paid)
BullGuard Backup Yes No No Yes No Yes[11] No Yes Yes Yes No Yes Yes Europe No ?
Carbonite Yes No Yes (Home only) Yes Yes for Windows only[12] Yes (Business only) Yes (Home only) Yes (Business only) No[13] Yes (Pro only) Yes Yes[14] USA No 4 GB Yes[15] No
Comodo Backup Yes No No Yes[16] No Yes No Yes (5) No No No No USA No
Crashplan Yes Yes Yes Yes[17] Yes[18] Optional Yes Yes Yes[19] No Optional No Yes[20] No Yes USA, Australia[21] No No Limit Yes[22] ?
Datapreserve Yes No No Yes[23] No Yes Yes USA ?
Dell Datasafe Yes No No Yes No 10, 30, 50, 100 GB No No Yes 2 GB ?
Dolly Drive No No Yes Yes[24] No Yes No Yes Yes Yes No Yes Yes No Yes USA, Europe No No limit Yes[25] ?
Diino Yes Yes Yes No[26] No Optional Yes Optional Yes Optional Yes Yes No No limit ?
Dropbox Yes Yes Yes Yes Yes Yes No[27], but 3rd party apps available[28] Yes Yes; third-party webdav service, 300 MB write limit apply No Yes Yes Yes USA 2 GB 300 MB (Web Interface) No limit (Desktop client) No No
Dropmysite Yes Yes Yes Yes No Yes Optional No Yes Yes Yes Yes Global Yes No limit ?
Egnyte Yes Yes Yes Optional[29] Optional[30] Yes No Yes Yes Yes USA No No limit ?
ElephantDrive Yes Partial Yes Yes Yes[31] Yes No 2 GB ?
EVault Yes Yes Yes Yes[citation needed] No No Yes Yes Yes No No Yes Yes USA Canada UK Ireland No No limit Yes Yes
Fabrik Ultimate Backup Yes No No Yes No[32] Yes Yes Yes No Yes No Yes USA 5 GB ?
FilesAnywhere Yes Partial Yes Optional[33] No[34] Yes No Yes Yes Yes, WebAdvanced accounts and up. No Yes Yes Yes Yes USA 1 GB No limit Yes
F-Secure Yes No Yes Yes[35] No[36] Yes Yes Yes Yes Yes Europe, US, APAC, several ISP-specific locations No 8 GB No ?
GFI Software Yes No No Yes[37] No No (Planned Mid/Late 2012) Yes Yes Yes Partial No No No No Yes USA, Australia, Europe, London No No limit Yes Yes
Google Drive Yes No, but support will come[38] Yes Yes Yes No[39] No Yes Yes No Yes Yes Yes Worldwide 5 GB 10 GB[40]
Handy Backup Yes Yes No Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes USA, CA No No limit Yes Yes
Humyo (now SafeSync) Yes Partial Yes No Yes Yes Yes Yes United Kingdom
IASO Backup Yes Yes Yes Yes[41] Yes[42] No Yes Yes Yes No No No No Yes USA, Australia, Europe, Russia No No limit Yes Yes
Infinit Yes Yes Yes Yes[43] Optional[44] No Yes No Yes Yes Yes Yes Yes No limit Yes Yes
IDrive Yes No Yes Yes[45] Yes[46], but does NOT encrypt file-names Yes Yes Yes Yes Yes Yes USA 5 GB Yes
iCloud Yes No Yes No Yes ? ? but does NOT encrypt file-names ? ? ? ? ? ? unkown ?
Jungle Disk Yes Yes Yes Yes[47] Yes[48] Yes Yes Yes USA, Europe No 5 GB
Kaseya Yes No Yes Yes[citation needed] Yes Yes Yes Europe, USA, Asia No limit Yes Yes
KeepVault Yes No No Yes[49] Yes[50] Yes No Yes Yes USA 20 GB
LOGIX (branded as Save IT Safely) Yes No Yes Yes[51] No Yes Yes Yes Yes USA, Canada No No limit Yes
Memopal Yes Yes Yes Yes[52] No[53] Yes Yes Yes Yes Europe, USA, Asia 3 GB 5 GB
MiMedia Yes No No Yes[54] No Yes No Yes Yes Yes No No Yes No No  United States 7 GB 3 GB Yes
Mozy Yes No Yes Yes Yes Yes[55] Optional[56] Yes No No No No Yes USA, Europe 2 GB No limit [57] Yes No
SOS Online Backup Yes No Yes Yes[58] No[59] Yes Yes Yes Yes USA, Canada, Europe, APAC No No limit Yes
SpiderOak Yes Yes Yes Yes Yes Yes[60] Yes[61] Yes No Yes Yes Yes No Yes Yes Yes 2 GB No limit Yes Yes[62]
SugarSync Yes No Yes Yes[63] No[64] Yes No No Yes Yes Yes (SugarSync account needed for folders) 5 GB 100MB (web) No limit (client app)[65]
Syncplicity Yes No Yes Yes[66] No[67] Yes Yes Yes USA 2 GB
Ubuntu One Yes10 Yes Yes No[68] No Yes No Yes N/A (6) No Yes Yes Yes 5 GB 5 TB[69] No
Unitrends Vault2Cloud Yes Yes Yes Yes[70] No No Yes Yes Yes No Yes No Yes USA No
UpdateStar Online Backup Yes No No Yes[71] No[72] Yes[73] Yes Europe
usenet backup Yes Yes Yes manual manual: users need to encrypt the data themselves Yes Yes Yes Yes No No No No Yes Yes Worldwide Yes, Unlimited No limit Yes Yes
Windows Live Mesh Yes No Yes No No Yes[74] No Yes Yes Yes 5 GB 40 GB[75]
Microsoft SkyDrive Yes No Yes Yes[76] Yes No[77] No Yes[78] Yes 7 GB for new users, 25 GB for older users 2 GB
Wuala Yes Yes Yes Yes Yes Yes Yes[79] No No Yes Yes No Yes[80] Yes Yes Europe, data distributed in encrypted chunks 5 GB 100 GB[81]
Yandex.Disk Yes Partial (WebDAV) Yes No[82] No Yes No Yes Yes 10 GB 3 GB
Zmanda Cloud Backup Yes No No Optional[83] Optional[84] Yes Yes Yes USA, Europe, Singapore, Japan No limit Yes Yes
ZumoDrive (now Motocast) [85] Yes ZumoDrive yes Motocast no Yes Partial [86] No No[87] Yes Yes Yes Yes USA 2 GB No limit
Provider Win.1 Linux1 Mac1 Android1 iOS1 Encrypted storage Personal Encryption2 Limited MB plan3 Unlimited MB plan3 $/MB plan3 Unlimited BW 3 Net drive4 P2P5 Sync6 Autodetect changes11 Public file hosting7 physical media restore8 Server location9 Free online storage (non-trial)12 Maximum per-file size External hard drive support13 Hybrid Option14

Legend

  • ^1 Windows/Linux/Mac/iOS/Android - Supported operating systems for thick client (native binary application), which provide background data transmission and setting services.
  • ^2 Personal Encryption - The user needs to manage their own encryption key or password. If they lose it, there is no way to access the data. The service provider cannot access the user's data even if required by the government.[88][89] Backup service providers often claim that no one can access the users data even though they themselves could if forced to do so, so entries claiming support of this feature should always have a supporting reference. If the backup service has a password recovery or reset mechanism that allows a user to access their data when they lose their password or key, that proves they do not have personal encryption.
  • ^3 Payment method
    • L - Pay per computer. Additional fee for storage over a threshold.
    • U - Pay per computer. Storage per computer is unlimited.
    • M - Pay per unit of storage, but unlimited computers may share that storage.
    • B - Bandwidth capping or limits are used on accounts.
  • ^4 Net drive - a network drive acts as a regular computer drive, but is hosted remotely on a file server. Some common protocols used (FTP, SMB, NAS,...)
  • ^5 P2P storage - data spread over many computers based on peer-to-peer net advantages.
  • ^6 Sync - Synchronization between computers, and/or mobile devices (PDA, MDA,...)
  • ^7 Public Internet file hosting -
  • ^8 Restore via physical media -
  • ^9 Server location - countries where physical servers are located. Where the data will be located.
  • ^10 Still in Beta version
  • ^11 Whether the desktop client (if available) can detect and upload changes without scanning all files.
  • ^12 Many backup services offer a limited free plan, often for personal use. Often it is possible to increase the free backup limit through coupons, referrals, or other means that are not included in this column. This column also does not include free trials that are only available for a limited period of time.
  • ^13 External hard drive support - Can refer to an alternate backup destination or whether the service can back up external drives.
  • ^14 Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to Cloud) appliance encrypts and transmits data to a service provider. Recent backups are retained locally, to speed data recovery operations.
  • ^15 Bitcasa encrypts each file with a key derived from that file, so a file can be decrypted only if you already have (or have had) the decrypted version. Therefore bitcasa cannot decrypt arbirary files, but they could e.g. remove a specific requested file or log which users access a specific requested file. There also is a learn-the-remaining-information attack possible.[90][91]

Comments

Acronis
Up to 5PCs, always incremental backups, remote access from the web
AltDrive
Data de-duplication; block-level incremental; Unlimited offering. Home (1-3 computers) or Biz service (1-1000 computers). Client side encryption.
Backblaze
Data de-duplication; block-level incremental
Barracuda Backup Service
Data de-duplication; real-time hybrid onsite/offsite data back-up
BullGuard Backup
5PC/license, fast upload speeds, mobile access, encrypted transfer and storage, password-protected settings, free 24/7 support
Carbonite
Block-level incremental, Home or Pro Editions. iPhone/ Black berry/ Android App available To remotely access data from the online backup (For Pro: Users of the computer which are backed up, Not available for the Administrator of the Pro). Can manually select files to upload that are larger than 4 GB.
Crashplan
Unlimited destinations. Data de-duplication; block-level incremental. Can run server-free, exchanging backup space with friends and family.
Datashield
High-level encryption, personalized encryption key, shared cloud drive, sync folder functionality
Dolly Drive
Only Cloud Storage that integrates Apple's Time Machine with cloud. Also allows users to Sync files and folders and Archive and clone all from one app plus free seeding.
Diino
iPhone/Android app available.
Dropbox
Data de-duplication, delta sync, iPhone/Android/Blackberry app available.
Dropmysite
website backup, database backup, SFTP support, free up to 2GB.
Egnyte
Delta sync, Google Docs sync, user and group management
ElephantDrive
Auto-transfer from defunct Xdrive.
Fabrik Ultimate
Backup Block-level incremental backups, Encryption: 128 bits standard, 448 bits optional, limited account of up to 3 GB is free. Acquired by Hitachi. According to their tech support, their offering is a branded version of Memopal.
FilesAnywhere
Mark Cuban acquired minority interest in 2006. Android, iOS, BlackBerry Apps available. Dedicated server options available. CoolBackup software used for Backup/Sync.
F-Secure
[Steek acquired by F-Secure July 2009]
Humyo
Humyo was acquired by Trend Micro and will become part of Trend Micro SafeSync. Humyo no longer accepts new clients.
IASO Backup
Advanced data reduction technology. Data de-duplication mechanism. High level of scalability and cost effectiveness.
IDrive
Proprietary license download client. Automatic Selection. Continuous Data Protection."Virtual drive" explorer.
Jungle Disk
Proprietary license download client sample code.
KeepVault
Real-time hybrid onsite / offsite data backup
LOGIX
Available in consumer and business editions.
Memopal
Cross-user de-duplication, delta sync
MiMedia
Initial seed via a MiMedia-owned external hard drive available (no extra cost, shipping included).
Mozy
Data de-duplication; block-level incremental. "Mozy Data Shuttle" physical seeding service available for extra fee.
SpiderOak
Data de-duplication."Zero Knowledge" encryption.
StoreGrid Cloud
Byte-level Incremental backup, local backup, Disk Image Backup - BMR and physical seeding.
Syncplicity
Google Docs sync, Central Management with Business Console
Ubuntu One
GPL client
Unitrends Vault2Cloud
Data de-duplication; hybrid on- & off-premise data backup; physical seeding
UpdateStar Online Backup
Data de-duplication; block-level incremental
Usenet backup
Is the method of storing backup data on the usenet. [92]
Windows Live Mesh
replaces windows live sync and windows live folder
Wuala
Client-side encryption, Wuala does not have access to the data.
Zetta Enterprise-grade Online Backup
Supports Linux, Mac OS, and Windows, high speed WAN optimization, SAS 70 certified datacenters
Zmanda Cloud Backup
Available in German and Japanese languages, supports MS SQL Server, MS Exchange, SharePoint, MySQL Database, System State, Oracle
ZumoDrive
Cloud appears local to filesystem, content streaming, predictive caching, delta sync

Versioning

Any changes can be undone, and files can be undeleted.

Acronis
supports detailed history of changes to files with browsing by date or version number
AltDrive
Old versions of files are kept for 30 days. Biz customers choose their retention policy of 30 days to 7 years to forever.
Backblaze
Old versions of files are kept for 30 days.
Carbonite
Keeps old versions for up to three months. It keeps one version for each day of the past week, one version for each of the previous three weeks, and one version for each of the previous two months that the file has been backed up.
Crashplan
Options: All, or staged (daily, then weekly, etc.)
Dolly Drive
Yes
Dropbox
No version history kept in free account as of 2012, but discrete files deleted can be undeleted.
Dropmysite
Provides incremental backups with the ability to download every snapshot.
ElephantDrive
Old versions of files are kept for 30 days.
IASO Backup
All versions of files can be kept for different period of time: starting from 1 month till 1 year or more.
LOGIX Save IT Safely
All versions are kept. Only the largest counts towards the storage limit.
SOS Online Backup
All versions are kept. Only the largest counts towards the storage limit.
SpiderOak
All versions are kept. All files can be undeleted.
SugarSync
Five versions are kept. Only the most recent counts towards the storage limit.
Wuala
Ten versions are kept. Only the most recent counts towards the storage limit.
Zetta Enterprise-grade Online Backup
All versions are kept. All files can be undeleted.

See also

Defunct services

References

  1. ^ Onlinebackupdeals » AltDrive Review
  2. ^ AltDrive Blog » A note on AltDrive Security…
  3. ^ Backblaze Blog » How to make strong encryption easy to use
  4. ^ Backblaze Blog » How to make strong encryption easy to use
  5. ^ http://www.barracudanetworks.com/ns/products/backup_faq.php#Q6
  6. ^ Bitcasa
  7. ^ Techcrunch interview with Bitcasa CEO
  8. ^ Is there a maximum file size for a single file allowed for being stored in the cloud? "Infinity :)"
  9. ^ https://www.box.com/enterprise/security-and-architecture/
  10. ^ https://www.box.com/enterprise/security-and-architecture/
  11. ^ http://www.bullguard.com/products/bullguard-online-backup-10.aspx
  12. ^ Managing Your Private Encryption Key
  13. ^ Bandwidth Allocation, retrieved 2012-01-25
  14. ^ HomePremier and Business plans only: http://www.carbonite.com/en/home/online-backup-pricing
  15. ^ HomePlus, HomePremier and Business plans only: http://www.carbonite.com/en/home/online-backup-pricing
  16. ^ http://backup.comodo.com/backup-features.php
  17. ^ FAQ: Security - CrashPlan Support Site
  18. ^ FAQ: Security - CrashPlan Support Site
  19. ^ http://support.crashplan.com/doku.php/faq/mozy#are_crashplan_unlimited_plans_really_unlimited , throttled by setting by default http://support.crashplan.com/doku.php/reference_guide/settings#network
  20. ^ http://support.crashplan.com/doku.php/reference/real_time_backups
  21. ^ http://support.crashplan.com/doku.php/faq/australia
  22. ^ as a local backup option : http://support.crashplan.com/doku.php/getting_started/attached_drive_shared_folder and to backup : http://support.crashplan.com/doku.php/faq/mozy#can_i_back_up_my_external_hard_drive_thumb_drive
  23. ^ http://datapreserve.com/solutions/online-backup-and-offsite-storage/
  24. ^ http://www.dollydrive.com/learn_more/faq/#faq6
  25. ^ by creating a local bootable clone of the Hard Drive and Dock Station
  26. ^ https://www.diino.com/c/default-en/help
  27. ^ Dropbox Lied to Users About Data Security, Complaint to FTC Alleges | Threat Level | Wired.com
  28. ^ Encrypt Files On The Client-Side Before Uploading To Dropbox | DiggFreeware.com
  29. ^ Security & Privacy - Online Storage Protection and Secure File Sharing for Egnyte Cloud File Server
  30. ^ Security & Privacy - Online Storage Protection and Secure File Sharing for Egnyte Cloud File Server
  31. ^ What is a Personal Key in the encryption settings? : Knowledge Base and Support Center
  32. ^ http://www.hitachibackup.com/support/
  33. ^ http://support.filesanywhere.com/entries/20136112-security
  34. ^ Privacy Policy : Support Center
  35. ^ F-Secure Online Backup FAQ
  36. ^ F-Secure Online Backup FAQ
  37. ^ GFI Managed Online Backup
  38. ^ Google Drive Is Coming to Linux
  39. ^ Google's privacy policy allows it to analyse user data to display matching adds, so it's probably not storing the data encrypted
  40. ^ Google Docs size limits "Files that you upload but don’t convert to Google Docs format can be up to 10 GB each."
  41. ^ http://www.iaso.com/online-backup/security/
  42. ^ http://www.iaso.com/online-backup/security/
  43. ^ http://www.infinit.io/
  44. ^ http://www.infinit.io/
  45. ^ http://www.idrive.com/online-backup-general-faq.htm
  46. ^ http://www.idrive.com/online-backup-general-faq.htm
  47. ^ Encryption and Account Keys : Jungle Disk Support
  48. ^ Encryption and Account Keys : Jungle Disk Support
  49. ^ Online Backups, Hard Drive Backup, Windows Backup | KeepVault
  50. ^ http://forums.proxure.com/viewtopic.php?t=2141, http://forums.proxure.com/viewtopic.php?t=1389
  51. ^ Backup Unlimited PCs with Flexible Scheduling - Save IT Safely Backup
  52. ^ Security – Memopal
  53. ^ http://www.memopal.com/en/supportfaq/i-have-lost-my-password—can-i-retrieve-it.htm
  54. ^ http://support.mimedia.com/article/how-secure-is-my-data-13.html
  55. ^ Mozy Help : Understanding MozyHome Encryption
  56. ^ Mozy Help : Understanding MozyHome Encryption
  57. ^ http://community.mozy.com/t5/Mozy-for-Windows/Limit-on-file-size/td-p/4420
  58. ^ Backup Unlimited PCs with Flexible Scheduling - SOS Backup
  59. ^ SOS Online Backup password recovery
  60. ^ Fault Tolerant Design, True Privacy and Efficient Versioning - SpiderOak.com
  61. ^ Fault Tolerant Design, True Privacy and Efficient Versioning - SpiderOak.com
  62. ^ https://spideroak.com/manual/preferences
  63. ^ Data and File Security - Secure Online Backup – SugarSync
  64. ^ SugarSync password recovery
  65. ^ What is max file size for upload? "There is no maximum file size limit for adding the file through the SugarSync Manager application. However, there is a 100MB limit for files being uploaded through the SugarSync website."
  66. ^ Syncplicity User Manual / About Syncplicity
  67. ^ Syncplicity User Manual / About Syncplicity
  68. ^ bug #375289: data encryption (client-side as well as server-side)
  69. ^ https://wiki.ubuntu.com/UbuntuOne/FAQ/WhatIsTheLargestSizeFileICanSync
  70. ^ http://www.unitrends.com/features/incrypt.html
  71. ^ UpdateStar - Simplify your software life
  72. ^ Even though UpdateStar allows you to manage your own private key, they also have an Encryption Key Recovery Service. How that exactly works is not clear from the website.
  73. ^ Server Edition
  74. ^ Skydrive secure storage features
  75. ^ Windows Live Sync beta blends the best of Sync and Mesh "We also increased key sync limits, with support for more sync folders, many more files in each folder, and the ability to synchronize files as large as 40GB now."
  76. ^ Microsoft SkyDrive for Android app is now available
  77. ^ Skydrive secure storage features, Microsoft monitoring, censoring SkyDrive uploads? | WMPoweruser
  78. ^ http://cybernetz.net/microsoft-skydrive-25gb-als-netzwerklaufwerk-in-explorer-einbinden
  79. ^ Wuala - Technology - Secure Cloud Storage - Backup. Sync. Share. Access Everywhere.
  80. ^ http://www.wuala.com/blog/2011/05/hottingen-new-style-full-feature-set.html
  81. ^ http://www.wuala.com/blog/2011/10/hirslanden-more-storage-for-everyone.html
  82. ^ http://help.yandex.ru/disk/?id=1124534
  83. ^ http://www.zmanda.com/zcb-faq.html#500
  84. ^ http://www.zmanda.com/zcb-faq.html#500
  85. ^ http://www.zumodrive.com/
  86. ^ http://www.mymotocast.com/supported_devices
  87. ^ ZumoDrive password recovery page
  88. ^ Internet security: Keys to the cloud castle | The Economist
  89. ^ Why I Use Jungle Disk and Tarsnap — Evil Routers
  90. ^ http://security.stackexchange.com/questions/7142/online-backup-how-could-encryption-and-de-duplication-be-compatible
  91. ^ The Learn The Remaining Information Attack
  92. ^ "usenet backup". Wikihow.com. Retrieved 2012-1-26. {{cite web}}: Check date values in: |accessdate= (help)
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