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Backup · head to head

Clumio vs Duplicacy

Clumio logo

Clumio

Backup

Serverless AWS backup with published per-gigabyte rates and explicit restore charges

From
$0.01/month
Rated
-
Full reviewWebsite
Duplicacy logo

Duplicacy

Backup

Lock-free deduplication cloud backup

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Duplicacy has a free tier, so it costs nothing to try first.
  • Each has a real cost: Clumio restore is charged at $0.040 per GiB plus data transfer out, so recovering a hundred terabytes in an incident costs thousands of dollars on top of the storage fee, a bill nobody budgets for.; Duplicacy web GUI pricing tier not specified on product page
  • They diverge on capability: Clumio covers Air-gapped backups, Duplicacy covers Lock-free deduplication.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Clumio and Duplicacy actually diverge.

Attributes where Clumio and Duplicacy differ
AttributeClumioDuplicacy
Starting price$0.01/monthFree
Pricing modelPer GiB-month protectedfreemium
Free tierNoYes
PlatformsWeb, APImacOS, Linux, Windows
FoundedUnknown2016

Identical on both: 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 Clumio

  • Air-gapped backups
  • Fifteen-minute recovery points
  • S3 SecureVault
  • Backtrack
  • Terraform provider
  • Compliance attestations

Only in Duplicacy

  • Lock-free deduplication
  • Client-side encryption
  • Multiple computers
  • Erasure coding
  • Variable-size chunking
  • RSA encryption
  • AWS S3
  • Azure

What people use each for

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

Clumio

  • An AWS-native company needing backups outside its own account so a compromised root credential cannot delete themnot Duplicacy
  • A team that has to model recovery cost before an incident rather than discover it during onenot Duplicacy
  • An organisation protecting billions of S3 objects where per-object charges dominate per-gigabyte chargesnot Duplicacy
  • A regulated business needing SOC 2, HIPAA and PCI-DSS attested backup without running backup serversnot Duplicacy

Duplicacy

  • Client-side encrypted cloud backupsnot Clumio
  • Lock-free deduplication for efficient backup storagenot Clumio
  • Multi-destination backup supportnot Clumio

Where each one falls short

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

Clumio

  • Restore is charged at $0.040 per GiB plus data transfer out, so recovering a hundred terabytes in an incident costs thousands of dollars on top of the storage fee, a bill nobody budgets for.
  • Per-object charges of $1.50 per million managed objects per month mean estates with billions of small objects pay far more than a per-gigabyte estimate suggests.
  • The archive tier is cheaper to store but restores begin only after 24 to 48 hours, which is incompatible with most recovery time objectives, and early deletion inside six months incurs a fee.
  • It is an AWS product; Azure workloads are on the roadmap rather than shipping, so multi-cloud organisations still need a second backup platform.
  • The Commvault acquisition means Clumio now overlaps with Commvault own cloud protection, and buyers should ask directly how the two portfolios converge before signing multi-year terms.

Duplicacy

  • Web GUI pricing tier not specified on product page

Pricing, plan by plan

Clumio

$0.01/month
  • S3 SecureVault Standard$0.025/month
    • $0.025 per GiB-month plus $1.50 per million managed objects per month
    • Restores $0.040 per GiB instant access and $0.09 per GiB retrieved
    • $0.025 per 1,000 API requests, data transfer out charged separately
  • S3 SecureVault Archive$0.01/month
    • $0.010 per GiB-month plus $1.50 per million managed objects per month
    • Restores begin after 24 to 48 hours
    • $0.040 per GiB restored plus data transfer out
  • Backtrack$undefined/month
    • $1.50 per million managed objects-month, included free with SecureVault
    • $0.50 per million objects processed on restore
    • Metadata change tracking rather than full backup

Duplicacy

Free

No published plan breakdown. See the Duplicacy review.

Which should you pick?

Choose Clumio if

  • You need air-gapped backups.
  • You work on Web, API.
  • You also want fifteen-minute recovery points.
Clumio review

Choose Duplicacy if

  • You need lock-free deduplication.
  • You want to start without paying.
  • You work on macOS, Linux, Windows.
  • You also want client-side encryption.
Duplicacy review

Questions people ask

Is Clumio or Duplicacy better?
Neither clearly leads. Clumio starts at $0.01/month and Duplicacy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Clumio or Duplicacy?
Duplicacy has a free tier; the other does not. Paid plans start at $0.01/month for Clumio and Free for Duplicacy.
Does Clumio or Duplicacy run on more platforms?
Clumio runs on Web, API. Duplicacy runs on macOS, Linux, Windows.
Can I use Duplicacy for free?
Yes. Duplicacy has a free tier, so you can try it without paying. Clumio starts at $0.01/month.
What is Clumio best used for?
Clumio is most often used for an aws-native company needing backups outside its own account so a compromised root credential cannot delete them, a team that has to model recovery cost before an incident rather than discover it during one, an organisation protecting billions of s3 objects where per-object charges dominate per-gigabyte charges, a regulated business needing soc 2, hipaa and pci-dss attested backup without running backup servers. Of those, an aws-native company needing backups outside its own account so a compromised root credential cannot delete them and a team that has to model recovery cost before an incident rather than discover it during one are not what Duplicacy is typically brought in for.
What can Clumio do that Duplicacy cannot?
Clumio covers Air-gapped backups, Fifteen-minute recovery points, S3 SecureVault, Backtrack. Duplicacy covers Lock-free deduplication, Client-side encryption, Multiple computers, Erasure coding.

Answered from the vendors’ own pages

Clumio: What does a restore cost?

$0.040 per GiB for instant access, $0.09 per GiB retrieved from archive, $0.025 per 1,000 API requests, plus AWS data transfer out. Model this before an incident.

Duplicacy: What is the cost of the Duplicacy command line version for commercial use?

The commercial license for Duplicacy's command line version costs $50 per machine per year. The CLI version is free for individual users.

Source
Clumio: Does it support Azure?

Not yet. Azure workloads are listed as on the roadmap. Today it is AWS, with some Google Cloud Storage coverage.

Duplicacy: Is pricing available for the Duplicacy Web GUI edition?

No pricing information is provided for the Web Edition (GUI) on the Duplicacy website. You would need to contact [email protected] for Web Edition pricing details.

Source
Clumio: Is it still Clumio after the Commvault acquisition?

Yes, sold as Clumio by Commvault with its own pricing page and product line, but ask about portfolio convergence on a multi-year deal.

Duplicacy: Are volume discounts available for IT service providers?

Yes, volume discounts are available for IT service providers and resellers. Contact [email protected] to discuss volume pricing options.

Source
Duplicacy: What backup modes and features are included in the free version?

The free version includes file, disk, partition, and system backup with full, incremental, and differential backup modes. It also offers scheduled backups, encryption, and emergency disk creation.

Source
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