Softwr

File Storage & Backup · head to head

Arq Backup vs Datto SIRIS

Arq Backup logo

Arq Backup

File Storage & Backup

Mac and Windows backup to your own cloud storage

From
$50/year
Rated
-
Full reviewWebsite
Datto SIRIS logo

Datto SIRIS

Backup & Disaster Recovery

All-in-one business continuity and disaster recovery

From
$1095/one-time + recurring
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arq Backup runs on Mac and Windows only; Datto SIRIS requires on-premises appliance, not purely cloud-native
  • They diverge on capability: Arq Backup covers Client-side encryption, Datto SIRIS covers Instant virtualization.

Where they differ

Only the attributes on which Arq Backup and Datto SIRIS actually diverge.

Attributes where Arq Backup and Datto SIRIS differ
AttributeArq BackupDatto SIRIS
Starting price$50/year$1095/one-time + recurring
Pricing modelsubscriptionUnknown
PlatformsWindows, MacLinux, Virtual Environments
CategoryFile Storage & BackupBackup & Disaster Recovery
Founded20092011

Identical on both: free tier (No), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Arq Backup

  • Client-side encryption
  • Hourly backups
  • Network backup
  • Deduplication
  • Immutable backups
  • Budget controls
  • AWS S3
  • Google Cloud

Only in Datto SIRIS

  • Instant virtualization
  • Screenshot verification
  • Ransomware detection
  • Inverse chain technology
  • Cloud-first architecture
  • Automated DR testing
  • VMware
  • Hyper-V

Both cover

  • Windows support

What people use each for

The jobs each tool is most often brought in to do.

Arq Backup

  • Data protection
  • Disaster recovery
  • Business continuity
  • Ransomware protection
  • Compliance

Datto SIRIS

  • Data protection
  • Disaster recovery
  • Business continuity
  • Ransomware protection
  • Compliance

Both are used for data protection, disaster recovery, business continuity, ransomware protection, compliance, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Arq Backup

  • Runs on Mac and Windows only
  • Arq 7 is licensed per computer, and continuing to receive updates after the first year costs $25 per year per computer
  • Arq Premium covers up to 5 computers, so larger households or teams need more than one subscription
  • Arq Premium includes 1TB of storage and charges $0.0059 per GB per month beyond it

Datto SIRIS

  • Requires on-premises appliance, not purely cloud-native
  • Initial setup and hardware costs can be substantial for smaller MSPs

Pricing, plan by plan

Arq Backup

$50/year
  • Arq Premium$50/year
    • 5 computers
    • Arq Cloud storage option
    • Email support

Datto SIRIS

$1095/one-time + recurring

No published plan breakdown. See the Datto SIRIS review.

Which should you pick?

Choose Arq Backup if

  • You need client-side encryption.
  • You work on Windows, Mac.
  • You also want hourly backups.
Arq Backup review

Choose Datto SIRIS if

  • You need instant virtualization.
  • You work on Linux, Virtual Environments.
  • You also want screenshot verification.
Datto SIRIS review

Questions people ask

Is Arq Backup or Datto SIRIS better?
Neither clearly leads. Arq Backup starts at $50/year and Datto SIRIS at $1095/one-time + recurring, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arq Backup or Datto SIRIS?
Arq Backup starts at $50/year and Datto SIRIS at $1095/one-time + recurring.
Does Arq Backup or Datto SIRIS run on more platforms?
Arq Backup runs on Windows, Mac. Datto SIRIS runs on Linux, Virtual Environments.
What is Arq Backup best used for?
Arq Backup is most often used for data protection, disaster recovery, business continuity, ransomware protection.
What can Arq Backup do that Datto SIRIS cannot?
Arq Backup covers Client-side encryption, Hourly backups, Network backup, Deduplication. Datto SIRIS covers Instant virtualization, Screenshot verification, Ransomware detection, Inverse chain technology. Both handle Windows support.

Answered from the vendors’ own pages

Datto SIRIS: What does SIRIS protect against?

Datto SIRIS includes immutable cloud backups, automated recovery verification, and integrated ransomware detection through Cloud Deletion Defense which undoes accidental or malicious backup deletion.

Source
Datto SIRIS: What's the pricing model?

Datto SIRIS uses flat-rate pricing starting at $1,095, which includes installation, storage, VIP support, recoveries, two annual DR tests, and five-year warranty.

Source
Datto SIRIS: What integrations does SIRIS have?

Datto SIRIS integrates natively with Autotask PSA, Datto RMM, ConnectWise Automate, and ConnectWise PSA. It also supports virtualization platforms like vSphere and CentOS Linux.

Source
Datto SIRIS: Is SIRIS cloud-only or appliance-based?

Datto SIRIS is an on-premises appliance that backs up data to Datto's cloud. You do not need to maintain your own physical server infrastructure for the core SIRIS functionality.

Source
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