Is CosmosDB or Immuta better?

Neither clearly leads. CosmosDB starts at Free and Immuta at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, CosmosDB or Immuta?

CosmosDB has a free tier; the other does not. Paid plans start at Free for CosmosDB and On request for Immuta.

Does CosmosDB or Immuta run on more platforms?

CosmosDB runs on Web, Azure. Immuta runs on Web, API, Cloud.

Can I use CosmosDB for free?

Yes. CosmosDB has a free tier, so you can try it without paying. Immuta starts at On request.

What is CosmosDB best used for?

CosmosDB is most often used for running a globally distributed multi model database on azure, serving low latency reads and writes from multiple azure regions, storing document, key value and graph data behind a managed service. Of those, running a globally distributed multi model database on azure and serving low latency reads and writes from multiple azure regions are not what Immuta is typically brought in for.

What can CosmosDB do that Immuta cannot?

CosmosDB covers Global Distribution, Multi-model APIs, Elastic Scaling, Five Consistency Levels. Immuta covers Attribute-based policy, Native enforcement, Dynamic masking, Row-level filtering.

Databases · head to head

CosmosDB vs Immuta

CosmosDB

Databases

Globally distributed, multi-model database service from Azure

From: Free
Rated: -

Full review Website

Immuta

Databases

Attribute-based access control and masking applied inside Snowflake, Databricks and BigQuery

From: On request
Rated: -

Full review Website

The short version

Only CosmosDB has a free tier, so it costs nothing to try first.
Each has a real cost: CosmosDB autoscale provisioned throughput enforces a minimum of 1,000 RU/s, billed hourly whether or not the database is used; Immuta contracts commonly start around one hundred to two hundred thousand US dollars a year for mid-market deployments and exceed five hundred thousand at enterprise scale, which excludes most data teams without a regulatory mandate.
They diverge on capability: CosmosDB covers Global Distribution, Immuta covers Attribute-based policy.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which CosmosDB and Immuta actually diverge.

Attributes where CosmosDB and Immuta differ
Attribute	CosmosDB	Immuta
Starting price	Free	On request
Pricing model	usage-based	quote
Free tier	Yes	No
Platforms	Web, Azure	Web, API, Cloud
Founded	1975	Unknown

Identical on both: user rating (Not yet rated), category (Databases).

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 CosmosDB

Global Distribution
Multi-model APIs
Elastic Scaling
Five Consistency Levels
SLA-backed Latency
Automatic Indexing
Serverless
Azure Functions

Only in Immuta

Attribute-based policy
Native enforcement
Dynamic masking
Row-level filtering
Purpose-based access
Sensitive data tagging
Audit logging
Multi-platform

What people use each for

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

CosmosDB

Running a globally distributed multi model database on Azurenot Immuta
Serving low latency reads and writes from multiple Azure regionsnot Immuta
Storing document, key value and graph data behind a managed servicenot Immuta

Immuta

A bank whose Snowflake estate has grown to tens of thousands of roles that no one can review before an auditnot CosmosDB
A healthcare analytics team that must let researchers query patient data with identifiers masked unless a specific purpose is recordednot CosmosDB
A multinational applying different residency and access rules per jurisdiction to the same tables without duplicating datasetsnot CosmosDB
An organisation running both Snowflake and Databricks that wants one policy set rather than two divergent implementationsnot CosmosDB

Where each one falls short

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

CosmosDB

Autoscale provisioned throughput enforces a minimum of 1,000 RU/s, billed hourly whether or not the database is used
Provisioned throughput is charged in every region the account is replicated to, so multi region accounts multiply the RU bill
Storage charges cover data, indexes and backups in each replicated region
Egress out of Azure and between regions is charged, though ingress is free
The free allowance is one account per Azure subscription, limited to 1,000 RU/s and 25 GB
RU/s rates vary by region and are only shown through the pricing calculator rather than a flat published rate

Immuta

Contracts commonly start around one hundred to two hundred thousand US dollars a year for mid-market deployments and exceed five hundred thousand at enterprise scale, which excludes most data teams without a regulatory mandate.
Policy is only as good as the data classification underneath it, so an organisation with poorly tagged columns will spend months on classification before Immuta enforces anything useful.
Native enforcement means capability varies by platform, and a feature available on Snowflake may be absent or behave differently on BigQuery, which undermines the promise of one policy set everywhere.
Adding an access governance layer creates a new dependency in the path to data: a misconfigured policy silently returns fewer rows rather than erroring, and analysts can act on incomplete results without noticing.
It governs cloud data platforms, so personal data in operational databases, files and SaaS applications sits outside its scope and needs separate controls, meaning Immuta is rarely the whole answer.

Pricing, plan by plan

CosmosDB

Free

Free TierFree
- 1000 RU/s
- 25GB storage
- First 12 months
ServerlessFree
- Pay per request
- Auto-scaling
- Event-driven workloads

Immuta

On request

Immuta Platform$undefined/year
- Attribute-based policy authoring
- Native enforcement in supported data platforms
- Dynamic masking and row-level security

Which should you pick?

Choose CosmosDB if

You need global distribution.
You want to start without paying.
You work on Web, Azure.
You also want multi-model apis.

CosmosDB review

Choose Immuta if

You need attribute-based policy.
You work on Web, API, Cloud.
You also want native enforcement.

Immuta review

Questions people ask

Is CosmosDB or Immuta better?: Neither clearly leads. CosmosDB starts at Free and Immuta at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CosmosDB or Immuta?: CosmosDB has a free tier; the other does not. Paid plans start at Free for CosmosDB and On request for Immuta.
Does CosmosDB or Immuta run on more platforms?: CosmosDB runs on Web, Azure. Immuta runs on Web, API, Cloud.
Can I use CosmosDB for free?: Yes. CosmosDB has a free tier, so you can try it without paying. Immuta starts at On request.
What is CosmosDB best used for?: CosmosDB is most often used for running a globally distributed multi model database on azure, serving low latency reads and writes from multiple azure regions, storing document, key value and graph data behind a managed service. Of those, running a globally distributed multi model database on azure and serving low latency reads and writes from multiple azure regions are not what Immuta is typically brought in for.
What can CosmosDB do that Immuta cannot?: CosmosDB covers Global Distribution, Multi-model APIs, Elastic Scaling, Five Consistency Levels. Immuta covers Attribute-based policy, Native enforcement, Dynamic masking, Row-level filtering.

Answered from the vendors’ own pages

CosmosDB: Is there a free tier for Azure Cosmos DB?

Yes, Cosmos DB offers a free tier with 1,000 RU/s of throughput and 25 GB of storage per month for the lifetime of the account, available to new accounts.

Source

Immuta: Does Immuta sit in the query path?

No. It compiles policies into the data platform's own native controls, so queries run at normal speed through your existing tools.

CosmosDB: How is Cosmos DB priced after the free tier?

Cosmos DB uses three billing models: provisioned throughput billed per request unit per second, vCore pricing for certain APIs, or serverless consumption pricing where you pay only for requests processed. Reserved capacity offers 20% discount for one year or 30% for three years.

Source

Immuta: What does it cost?

Not published. Market data suggests roughly 100,000 to 200,000 US dollars a year for mid-market deployments and considerably more at enterprise scale.

CosmosDB: Can I change my pricing model after choosing one?

No. Once you select a compute pricing model and API, they cannot be changed. This choice is permanent for that database.

Source

Immuta: Is Immuta still independent?

Yes. It remains independently owned, unlike several competitors in data access governance that have been acquired.

CosmosDB: Is there a trial period for Cosmos DB beyond the free tier?

Azure offers a 30-day free trial account for all Azure services. Additionally, Azure AI customers may be eligible for a 90-day free Cosmos DB subscription through the Azure AI Advantage program.

Source

Immuta: Does it work across more than one warehouse?

Yes, one policy set can target Snowflake, Databricks, BigQuery and Starburst, though enforcement capability varies by platform.

CosmosDB vs Immuta

CosmosDB

Immuta

The short version

Where they differ

What each one covers

Only in CosmosDB

Only in Immuta

What people use each for

CosmosDB

Immuta

Where each one falls short

CosmosDB

Immuta

Pricing, plan by plan

CosmosDB

Immuta

Which should you pick?

Choose CosmosDB if

Choose Immuta if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on CosmosDB

More on Immuta

Keep looking

Other head to heads