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Backup · head to head

Arcserve UDP vs Comet Backup

Arcserve UDP logo

Arcserve UDP

Backup

Unified data protection for all workloads

From
$25/month
Rated
-
Full reviewWebsite
Comet Backup logo

Comet Backup

Backup

White-label backup software for service providers

From
$19/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arcserve UDP multiple security vulnerabilities documented in 2025-2026 including authentication bypass and buffer overflow issues; Comet Backup per-endpoint costs ($2/month per endpoint) can add up for large deployments with many protected machines
  • They diverge on capability: Arcserve UDP covers Assured recovery testing, Comet Backup covers White-label branding.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Arcserve UDP and Comet Backup actually diverge.

Attributes where Arcserve UDP and Comet Backup differ
AttributeArcserve UDPComet Backup
Starting price$25/month$19/month
PlatformsWindows, LinuxWindows, macOS, Linux
Founded19832017

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated), category (Backup).

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 Arcserve UDP

  • Assured recovery testing
  • Instant VM recovery
  • Deep application support
  • Ransomware protection
  • Tape backup
  • Hardware snapshots
  • VMware
  • Hyper-V

Only in Comet Backup

  • White-label branding
  • Bring your own storage
  • End-to-end encryption
  • Chunking deduplication
  • Delta compression
  • Multi-tenant
  • AWS S3
  • Azure

Both cover

  • Windows support
  • Linux support
  • Web support

What people use each for

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

Arcserve UDP

  • Data protectionnot Comet Backup
  • Disaster recoverynot Comet Backup
  • Business continuitynot Comet Backup
  • Ransomware protectionnot Comet Backup
  • Compliancenot Comet Backup

Comet Backup

  • MSP backup and disaster recovery solutionsnot Arcserve UDP
  • Cloud-to-cloud backup automationnot Arcserve UDP
  • Ransomware protection with immutable storagenot Arcserve UDP

Where each one falls short

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

Arcserve UDP

  • Multiple security vulnerabilities documented in 2025-2026 including authentication bypass and buffer overflow issues
  • Slow restore speeds for large backup tasks and recovery operations
  • Requires full backup when changing drive sizes, causing extended backup windows

Comet Backup

  • Per-endpoint costs ($2/month per endpoint) can add up for large deployments with many protected machines
  • Advanced and Enterprise tiers with additional management capabilities are significantly more expensive than base tiers
  • Platform-specific features (SQL, MySQL, MongoDB, Microsoft 365) have separate per-unit pricing

Pricing, plan by plan

Arcserve UDP

$25/month
  • UDP Premium$25/month
    • Assured recovery
    • Instant VM
    • Tape support

Comet Backup

$19/month
  • Starter$19/month
    • 1 self-hosted license
    • Endpoint scaling at $2/endpoint/month
  • Growth$49/month
    • 2 self-hosted licenses
    • Primary/replica setups
    • Endpoint scaling at $2/endpoint/month
  • Advanced$99/month
    • 5 management console licenses
    • Audit logging
    • Air-gap management console
  • Professional (Cloud-Hosted)$49/month
    • 1 cloud-hosted console license
    • Endpoint scaling at $2/endpoint/month

Which should you pick?

Choose Arcserve UDP if

  • You need assured recovery testing.
  • You work on Windows, Linux.
  • You also want instant vm recovery.
Arcserve UDP review

Choose Comet Backup if

  • You need white-label branding.
  • You work on Windows, macOS, Linux.
  • You also want bring your own storage.
Comet Backup review

Questions people ask

Is Arcserve UDP or Comet Backup better?
Neither clearly leads. Arcserve UDP starts at $25/month and Comet Backup at $19/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arcserve UDP or Comet Backup?
Arcserve UDP starts at $25/month and Comet Backup at $19/month.
Does Arcserve UDP or Comet Backup run on more platforms?
Arcserve UDP runs on Windows, Linux. Comet Backup runs on Windows, macOS, Linux.
What is Arcserve UDP best used for?
Arcserve UDP is most often used for data protection, disaster recovery, business continuity, ransomware protection. Of those, data protection and disaster recovery are not what Comet Backup is typically brought in for.
What can Arcserve UDP do that Comet Backup cannot?
Arcserve UDP covers Assured recovery testing, Instant VM recovery, Deep application support, Ransomware protection. Comet Backup covers White-label branding, Bring your own storage, End-to-end encryption, Chunking deduplication. Both handle Windows support, Linux support, Web support.

Answered from the vendors’ own pages

Arcserve UDP: What licensing model does Arcserve UDP use?

Arcserve UDP uses a capacity-based subscription model (Managed Capacity Program) where you license based on total front-end terabytes of protected data rather than per-device. Available in Standard, Advanced, and Premium editions.

Source
Comet Backup: How much does Comet Backup cost?

Self-hosted plans start at $19/month (Starter) and go up to $99/month (Advanced), with cloud-hosted plans starting at $49/month (Professional). All plans charge $2 per endpoint per month for additional protected machines beyond the base license count.

Source
Arcserve UDP: Does Arcserve UDP support cloud backup?

Yes. Arcserve UDP integrates with multiple cloud providers including AWS, Microsoft Azure, Google Cloud, and Wasabi for offsite backup and disaster recovery storage.

Source
Comet Backup: What is the price difference between self-hosted and cloud-hosted deployments?

Cloud-hosted plans start at $49/month (Professional) versus self-hosted which starts at $19/month (Starter). The main advantage of cloud-hosted is Comet manages the console infrastructure, though both models charge the same per-endpoint fees.

Source
Arcserve UDP: What hypervisors does Arcserve UDP support?

Arcserve UDP supports multiple hypervisors including VMware vSphere, Microsoft Hyper-V, KVM, and others, allowing granular recovery at the VM level with instant boot capabilities.

Source
Comet Backup: Does Comet Backup charge for additional protected machines?

Yes, all plans charge $2 per endpoint per month beyond the licensed endpoints. For example, the Growth plan includes 2 self-hosted licenses, but each additional protected machine costs $2/month.

Source
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