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Backup · head to head

Duplicacy vs Redstor

Duplicacy logo

Duplicacy

Backup

Lock-free deduplication cloud backup

From
Free
Rated
-
Full reviewWebsite
Redstor logo

Redstor

Backup

Cloud backup for managed service providers with instant streamed recovery

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Duplicacy has a free tier, so it costs nothing to try first.
  • Each has a real cost: Duplicacy web GUI pricing tier not specified on product page; Redstor it is sold through the channel, so you cannot buy it direct and your price and support quality depend entirely on the partner you engage.
  • They diverge on capability: Duplicacy covers Lock-free deduplication, Redstor covers InstantData.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Duplicacy and Redstor actually diverge.

Attributes where Duplicacy and Redstor differ
AttributeDuplicacyRedstor
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsmacOS, Linux, WindowsWindows, macOS, Linux, Web
Founded2016Unknown

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 Duplicacy

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

Only in Redstor

  • InstantData
  • Multi-tenant console
  • SaaS application backup
  • Regional data centres
  • Malware detection
  • White labelling

What people use each for

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

Duplicacy

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

Redstor

  • A UK managed service provider needing client data to stay in UK data centres for public sector contractsnot Duplicacy
  • An MSP that wants to promise a recovery time measured in minutes rather than hours for file serversnot Duplicacy
  • A business needing Microsoft 365 and accounting SaaS backup managed by its IT provider in one consolenot Duplicacy
  • An MSP consolidating several backup products across its client base onto one multi-tenant platformnot Duplicacy

Where each one falls short

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

Duplicacy

  • Web GUI pricing tier not specified on product page

Redstor

  • It is sold through the channel, so you cannot buy it direct and your price and support quality depend entirely on the partner you engage.
  • Pricing is not published at all, and because partners resell it with their own margin, comparing quotes across MSPs is comparing partner markups rather than product cost.
  • The InstantData streaming advantage depends on network bandwidth to the data centre, so sites with poor connectivity see much less benefit than the demonstrations suggest.
  • Its footprint is concentrated in the UK, Europe and South Africa, so multinational organisations needing consistent coverage in North America or Asia will find the regional story uneven.
  • Feature depth for large enterprise virtual machine estates trails Veeam and Rubrik, so it fits small and medium client workloads rather than complex data centre recovery.

Pricing, plan by plan

Duplicacy

Free

No published plan breakdown. See the Duplicacy review.

Redstor

On request
  • Redstor Platform$undefined/year
    • Sold through managed service providers, priced per protected device or per user
    • Storage included in the per-unit price rather than billed separately
    • No egress or restore charges

Which should you pick?

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

Choose Redstor if

  • You need instantdata.
  • You work on Windows, macOS, Linux, Web.
  • You also want multi-tenant console.
Redstor review

Questions people ask

Is Duplicacy or Redstor better?
Neither clearly leads. Duplicacy starts at Free and Redstor at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Duplicacy or Redstor?
Duplicacy has a free tier; the other does not. Paid plans start at Free for Duplicacy and On request for Redstor.
Does Duplicacy or Redstor run on more platforms?
Duplicacy runs on macOS, Linux, Windows. Redstor runs on Windows, macOS, Linux, Web.
Can I use Duplicacy for free?
Yes. Duplicacy has a free tier, so you can try it without paying. Redstor starts at On request.
What is Duplicacy best used for?
Duplicacy is most often used for client-side encrypted cloud backups, lock-free deduplication for efficient backup storage, multi-destination backup support. Of those, client-side encrypted cloud backups and lock-free deduplication for efficient backup storage are not what Redstor is typically brought in for.
What can Duplicacy do that Redstor cannot?
Duplicacy covers Lock-free deduplication, Client-side encryption, Multiple computers, Erasure coding. Redstor covers InstantData, Multi-tenant console, SaaS application backup, Regional data centres.

Answered from the vendors’ own pages

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
Redstor: Can we buy Redstor directly?

Generally no. It is a channel product sold through managed service providers, so partner selection is part of the buying decision.

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
Redstor: Are there restore or egress charges?

Redstor includes storage and recovery in the per-unit price rather than charging separately for egress, which is the opposite of the cloud-native backup vendors.

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
Redstor: Where is data stored?

UK and regional data centres, selectable by tenant, which is the reason UK public sector and legal clients tend to shortlist it.

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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