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File Storage · head to head

Nasuni vs TrueNAS

Nasuni logo

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 reviewWebsite
TrueNAS logo

TrueNAS

File Storage

Open-source ZFS storage operating system for network-attached storage

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only TrueNAS has a free tier, so it costs nothing to try first.
  • 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.; TrueNAS requires self-hosting on x86 hardware, no managed cloud offering; organisations must provision, configure, and maintain their own infrastructure
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nasuni and TrueNAS actually diverge.

Attributes where Nasuni and TrueNAS differ
AttributeNasuniTrueNAS
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWeb, Windows, VMware, Hyper-V, AWS, AzureSelf-hosted, Linux, Web, API

Identical on both: 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 TrueNAS

Nothing recorded that Nasuni does not also cover.

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 TrueNAS
  • Replacing a NAS plus backup plus offsite replication stack with a single recovery modelnot TrueNAS
  • Engineering or media teams in different regions who need to work on the same large project filesnot TrueNAS
  • An organisation that has been hit by ransomware on file shares and needs version level rollback rather than tape restoresnot TrueNAS

TrueNAS

  • On-premises backup and archival storage for enterprisesnot Nasuni
  • Home lab and small business network-attached storagenot Nasuni
  • Media server storage for video, photo, and document librariesnot Nasuni
  • Disaster recovery and business continuity replicationnot Nasuni
  • S3-compatible object storage for cloud-native applicationsnot Nasuni
  • High-availability storage clusters for datacentresnot 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.

TrueNAS

  • Requires self-hosting on x86 hardware, no managed cloud offering; organisations must provision, configure, and maintain their own infrastructure
  • ZFS filesystem entails high memory requirements (1 GB RAM per 1 TB of storage recommended), increasing costs for large deployments
  • Limited ARM/embedded support; Community Edition is primarily x86-64, reducing deployment options for edge installations
  • Clustering and replication setup requires operational expertise; misconfiguration can lead to data loss
  • Enterprise support and SLA guarantees require paid subscriptions; Community Edition relies on peer-based forums

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

TrueNAS

Free

No published plan breakdown. See the TrueNAS review.

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 TrueNAS if

  • You want to start without paying.
  • You work on Self-hosted, Linux, Web, API.
TrueNAS review

Questions people ask

Is Nasuni or TrueNAS better?
Neither clearly leads. Nasuni starts at On request and TrueNAS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nasuni or TrueNAS?
TrueNAS has a free tier; the other does not. Paid plans start at On request for Nasuni and Free for TrueNAS.
Does Nasuni or TrueNAS run on more platforms?
Nasuni runs on Web, Windows, VMware, Hyper-V, AWS, Azure. TrueNAS runs on Self-hosted, Linux, Web, API.
Can I use TrueNAS for free?
Yes. TrueNAS has a free tier, so you can try it without paying. Nasuni starts at On request.
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 TrueNAS is typically brought in for.
What can Nasuni do that TrueNAS cannot?
Nasuni covers Edge caching appliances, Object storage back end, Continuous versioning, Global file lock.

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.

TrueNAS: What is the cost of TrueNAS Community Edition?

TrueNAS Community Edition is free and open-source. There are no licensing fees, but organisations must purchase and maintain their own x86 hardware. Enterprise Edition requires paid support contracts for production environments.

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.

TrueNAS: Can I replicate TrueNAS data between sites?

Yes. TrueNAS supports snapshot-based replication over network links, enabling disaster recovery and business continuity. Replication can occur between Community Edition systems or between Enterprise Appliances.

Source
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.

TrueNAS: What storage protocols does TrueNAS support?

TrueNAS simultaneously supports NFS (network file system), SMB (Windows file sharing), iSCSI (block storage), and S3-compatible object storage, all from the same storage pool.

Source
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.

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