Is Nasuni or Zerto better?

Neither clearly leads. Nasuni starts at On request and Zerto at $5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Nasuni or Zerto?

Nasuni starts at On request and Zerto at $5/month.

Does Nasuni or Zerto run on more platforms?

Nasuni runs on Web, Windows, VMware, Hyper-V, AWS, Azure. Zerto runs on Windows, Linux, Web.

What is Nasuni best used for?

Nasuni is most often used for consolidating file servers across many branch offices onto one namespace without shipping data between sites, replacing a nas plus backup plus offsite replication stack with a single recovery model, engineering or media teams in different regions who need to work on the same large project files, an organisation that has been hit by ransomware on file shares and needs version level rollback rather than tape restores. Of those, consolidating file servers across many branch offices onto one namespace without shipping data between sites and replacing a nas plus backup plus offsite replication stack with a single recovery model are not what Zerto is typically brought in for.

What can Nasuni do that Zerto cannot?

Nasuni covers Edge caching appliances, Object storage back end, Continuous versioning, Global file lock. Zerto covers Continuous data protection, Journal-based recovery, Automated failover, Non-disruptive testing.

File Storage · head to head

Nasuni vs Zerto

Nasuni

File Storage

Cloud file storage that keeps the authoritative copy in object storage and caches it at each site

From: On request
Rated: -

Full review Website

Zerto

File Storage

Continuous data protection with near-zero RPO

From: $5/month
Rated: -

Full review Website

The short version

Each has a real cost: Nasuni subscription is based on managed capacity, so cold data that would cost almost nothing in an archive tier keeps paying the full platform rate, and there is limited incentive structure to delete.; Zerto zerto with Azure is listed on UK G-Cloud as a reseller-managed disaster recovery service, not Zerto's own licence pricing, with OS management from £75 per host per month for the public sector
They diverge on capability: Nasuni covers Edge caching appliances, Zerto covers Continuous data protection.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nasuni and Zerto actually diverge.

Attributes where Nasuni and Zerto differ
Attribute	Nasuni	Zerto
Starting price	On request	$5/month
Pricing model	quote	subscription
Platforms	Web, Windows, VMware, Hyper-V, AWS, Azure	Windows, Linux, Web
Founded	Unknown	2009

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

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 Nasuni

Edge caching appliances
Object storage back end
Continuous versioning
Global file lock
Rapid site recovery
Ransomware detection

Only in Zerto

Continuous data protection
Journal-based recovery
Automated failover
Non-disruptive testing
Multi-cloud mobility
Long-term retention
VMware
Hyper-V

What people use each for

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

Nasuni

Consolidating file servers across many branch offices onto one namespace without shipping data between sitesnot Zerto
Replacing a NAS plus backup plus offsite replication stack with a single recovery modelnot Zerto
Engineering or media teams in different regions who need to work on the same large project filesnot Zerto
An organisation that has been hit by ransomware on file shares and needs version level rollback rather than tape restoresnot Zerto

Zerto

Data protectionnot Nasuni
Disaster recoverynot Nasuni
Business continuitynot Nasuni
Ransomware protectionnot Nasuni
Compliancenot Nasuni

Where each one falls short

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

Nasuni

Subscription is based on managed capacity, so cold data that would cost almost nothing in an archive tier keeps paying the full platform rate, and there is limited incentive structure to delete.
Every site needs an appliance, virtual or physical, which is a footprint and a patching obligation at locations that previously had only a file server or nothing.
A read that misses the local cache is fetched from object storage, so the first access to a cold large file is at cloud latency and users experience it as the system being slow at random.
Global file lock serialises access across regions, so genuinely collaborative editing of the same large files still involves waiting for another site to release the lock rather than merging.
The object storage underneath is your contract, so API transaction and egress charges from Azure or AWS land on your cloud bill and are not covered by the Nasuni subscription you were quoted against.

Zerto

Zerto with Azure is listed on UK G-Cloud as a reseller-managed disaster recovery service, not Zerto's own licence pricing, with OS management from £75 per host per month for the public sector

Pricing, plan by plan

Nasuni

On request

Nasuni File Data Platform$undefined/year
- Subscription based on managed capacity
- Edge appliances at each site
- Continuous versioning and rapid recovery

Zerto

$5/month

Zerto Enterprise Cloud$5/month
- Continuous protection
- Journal-based recovery
- Multi-cloud mobility

Which should you pick?

Choose Nasuni if

You need edge caching appliances.
You work on Web, Windows, VMware, Hyper-V, AWS, Azure.
You also want object storage back end.

Nasuni review

Choose Zerto if

You need continuous data protection.
You work on Windows, Linux, Web.
You also want journal-based recovery.

Zerto review

Questions people ask

Is Nasuni or Zerto better?: Neither clearly leads. Nasuni starts at On request and Zerto at $5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nasuni or Zerto?: Nasuni starts at On request and Zerto at $5/month.
Does Nasuni or Zerto run on more platforms?: Nasuni runs on Web, Windows, VMware, Hyper-V, AWS, Azure. Zerto runs on Windows, Linux, Web.
What is Nasuni best used for?: Nasuni is most often used for consolidating file servers across many branch offices onto one namespace without shipping data between sites, replacing a nas plus backup plus offsite replication stack with a single recovery model, engineering or media teams in different regions who need to work on the same large project files, an organisation that has been hit by ransomware on file shares and needs version level rollback rather than tape restores. Of those, consolidating file servers across many branch offices onto one namespace without shipping data between sites and replacing a nas plus backup plus offsite replication stack with a single recovery model are not what Zerto is typically brought in for.
What can Nasuni do that Zerto cannot?: Nasuni covers Edge caching appliances, Object storage back end, Continuous versioning, Global file lock. Zerto covers Continuous data protection, Journal-based recovery, Automated failover, Non-disruptive testing.

Answered from the vendors’ own pages

Nasuni: Do I still need a backup product?

That is the pitch: continuous versioning in object storage replaces the backup schedule for file data. Databases and virtual machines still need their own tooling.

Zerto: Can I try Zerto before buying?

Yes, Zerto offers a 14-day free trial or on-demand lab access to test the platform.

Source

Nasuni: Who owns the storage account?

You do. Nasuni writes into object storage you contract for, which also means the cloud provider bills you directly for it.

Nasuni: How fast is recovery of a whole site?

An appliance can be serving files within hours because data is pulled on demand, but performance stays degraded while the cache refills.

Nasuni: Is pricing published?

No. Nasuni sells through quotes based on managed capacity and site count, so comparisons need a real proposal rather than a list price.

Nasuni vs Zerto

Nasuni

Zerto

The short version

Where they differ

What each one covers

Only in Nasuni

Only in Zerto

What people use each for

Nasuni

Zerto

Where each one falls short

Nasuni

Zerto

Pricing, plan by plan

Nasuni

Zerto

Which should you pick?

Choose Nasuni if

Choose Zerto if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Nasuni

More on Zerto

Keep looking

Other head to heads