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File Storage · head to head

Cloudflare R2 vs Zerto

Cloudflare R2 logo

Cloudflare R2

File Storage

S3-compatible object storage that charges nothing for egress to the internet

From
Free
Rated
-
Full reviewWebsite
Zerto logo

Zerto

File Storage

Continuous data protection with near-zero RPO

From
$5/month
Rated
-
Full reviewWebsite

The short version

  • Only Cloudflare R2 has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cloudflare R2 there is no archive tier below Infrequent Access, so genuinely cold data costs roughly ten to fifteen times what it would cost in a deep archive class and there is nowhere cheaper to lifecycle it to.; 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: Cloudflare R2 covers Zero egress billing, Zerto covers Continuous data protection.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cloudflare R2 and Zerto actually diverge.

Attributes where Cloudflare R2 and Zerto differ
AttributeCloudflare R2Zerto
Starting priceFree$5/month
Pricing modelPer gigabyte stored per monthsubscription
Free tierYesNo
PlatformsWeb, APIWindows, Linux, Web
FoundedUnknown2009

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 Cloudflare R2

  • Zero egress billing
  • S3 API compatibility
  • Worker binding
  • Jurisdictional restriction
  • Infrequent Access tier
  • Custom domain serving

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.

Cloudflare R2

  • Serving a large media or asset library to the public where transfer out, not storage, is the dominant costnot Zerto
  • Hosting a container or artefact registry that thousands of CI runners pull from every daynot Zerto
  • Distributing model weights or open datasets that are downloaded far more often than they are updatednot Zerto
  • Moving off S3 specifically to stop paying data transfer charges on a read heavy bucketnot Zerto

Zerto

  • Data protectionnot Cloudflare R2
  • Disaster recoverynot Cloudflare R2
  • Business continuitynot Cloudflare R2
  • Ransomware protectionnot Cloudflare R2
  • Compliancenot Cloudflare R2

Where each one falls short

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

Cloudflare R2

  • There is no archive tier below Infrequent Access, so genuinely cold data costs roughly ten to fifteen times what it would cost in a deep archive class and there is nowhere cheaper to lifecycle it to.
  • Class A operations are billed at 4.50 USD per million, so a workload that writes millions of small objects can spend more on operations than on the storage those objects occupy.
  • Infrequent Access carries both a retrieval fee and a thirty day minimum storage duration, so data that is deleted or re-read sooner ends up more expensive than if it had stayed on Standard.
  • You choose a location hint rather than a region, so you cannot prove to an auditor which datacentre holds an object unless you use a jurisdiction restricted bucket, and jurisdictions are limited.
  • Support level follows your Cloudflare account plan rather than the storage spend, so a team on a low tier account gets ticket support with no storage specific SLA, and an R2 incident is a Cloudflare incident you cannot fail over from because the free egress only exists inside Cloudflare.

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

Cloudflare R2

Free
  • Free tierFree
    • 10 GB stored per month
    • 1 million Class A operations
    • 10 million Class B operations
  • Standard$0.015/month
    • Per gigabyte stored per month
    • 4.50 USD per million Class A operations
    • 0.36 USD per million Class B operations
  • Infrequent Access$0.01/month
    • Per gigabyte stored per month
    • Per gigabyte data retrieval fee
    • Thirty day minimum storage duration

Zerto

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

Which should you pick?

Choose Cloudflare R2 if

  • You need zero egress billing.
  • You want to start without paying.
  • You work on Web, API.
  • You also want s3 api compatibility.
Cloudflare R2 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 Cloudflare R2 or Zerto better?
Neither clearly leads. Cloudflare R2 starts at Free and Zerto at $5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cloudflare R2 or Zerto?
Cloudflare R2 has a free tier; the other does not. Paid plans start at Free for Cloudflare R2 and $5/month for Zerto.
Does Cloudflare R2 or Zerto run on more platforms?
Cloudflare R2 runs on Web, API. Zerto runs on Windows, Linux, Web.
Can I use Cloudflare R2 for free?
Yes. Cloudflare R2 has a free tier, so you can try it without paying. Zerto starts at $5/month.
What is Cloudflare R2 best used for?
Cloudflare R2 is most often used for serving a large media or asset library to the public where transfer out, not storage, is the dominant cost, hosting a container or artefact registry that thousands of ci runners pull from every day, distributing model weights or open datasets that are downloaded far more often than they are updated, moving off s3 specifically to stop paying data transfer charges on a read heavy bucket. Of those, serving a large media or asset library to the public where transfer out, not storage, is the dominant cost and hosting a container or artefact registry that thousands of ci runners pull from every day are not what Zerto is typically brought in for.
What can Cloudflare R2 do that Zerto cannot?
Cloudflare R2 covers Zero egress billing, S3 API compatibility, Worker binding, Jurisdictional restriction. Zerto covers Continuous data protection, Journal-based recovery, Automated failover, Non-disruptive testing.

Answered from the vendors’ own pages

Cloudflare R2: Is egress really free, with no hidden transfer charge?

Yes for data served out of R2 to the internet. You still pay per operation for the requests that serve it, and if you pull data into R2 from another provider you pay that provider the egress on the way in.

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
Cloudflare R2: How does the total cost compare with S3 for a public download bucket?

Storage is more expensive per terabyte than S3 Infrequent Access, but S3 charges roughly 90 USD per terabyte served. Any bucket that serves more than about a fifth of its stored volume each month is cheaper on R2.

Cloudflare R2: Can I use R2 without using the rest of Cloudflare?

Yes, it works through the plain S3 API from anywhere. You lose the Worker binding and the free CDN caching in front of it, which is where a lot of the practical benefit sits.

Cloudflare R2: Does R2 have a cold archive class like Glacier?

No. Infrequent Access is the coldest tier, at two thirds of the Standard rate plus retrieval fees.

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