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Databases · head to head

Amazon RDS vs Instaclustr

Amazon RDS logo

Amazon RDS

Databases

Set up, operate, and scale a relational database in the cloud

From
Free
Rated
-
Full reviewWebsite
Instaclustr logo

Instaclustr

Databases

NetApp-owned managed service for Cassandra, Kafka, OpenSearch, PostgreSQL and Cadence with a bring-your-own-cloud model

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Amazon RDS has a free tier, so it costs nothing to try first.
  • Each has a real cost: Amazon RDS no super-user access or direct host connectivity limits advanced customization; Instaclustr pricing is only obtainable through a configurator or sales conversation, so comparing against AWS MSK or Confluent list prices requires several rounds of quotes rather than a spreadsheet.
  • They diverge on capability: Amazon RDS covers Multiple DB Engines, Instaclustr covers Unmodified open source.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Amazon RDS and Instaclustr actually diverge.

Attributes where Amazon RDS and Instaclustr differ
AttributeAmazon RDSInstaclustr
Starting priceFreeOn request
Pricing modelusage-basedquote
Free tierYesNo
PlatformsAWS Cloud, Multi-AZ, Multi-regionCloud, Linux
Founded2006Unknown

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 Amazon RDS

  • Multiple DB Engines
  • Automated Backups
  • Multi-AZ Deployment
  • Read Replicas
  • Encryption
  • Performance Insights
  • Automatic Scaling
  • MySQL

Only in Instaclustr

  • Unmodified open source
  • Bring your own cloud
  • Multi technology platform
  • 24/7 operations
  • Managed backups
  • Terraform provider
  • SOC 2 and compliance
  • Consulting and support

What people use each for

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

Amazon RDS

  • Transaction processingnot Instaclustr
  • Data storagenot Instaclustr
  • Application backendnot Instaclustr
  • Reportingnot Instaclustr
  • Data analyticsnot Instaclustr

Instaclustr

  • An enterprise running Cassandra and Kafka that cannot hire and retain specialists for bothnot Amazon RDS
  • A company with cloud committed spend that wants managed data infrastructure to draw down that commitment through the bring-your-own-cloud modelnot Amazon RDS
  • A team that left Elastic over the licence change and wants OpenSearch operated by someone else without another proprietary forknot Amazon RDS
  • An organisation migrating off Amazon MSK or Keyspaces that wants the same open source software with vendor operations but portability intactnot Amazon RDS

Where each one falls short

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

Amazon RDS

  • No super-user access or direct host connectivity limits advanced customization
  • Pricing unpredictable and expensive compared to GCP alternatives with equivalent features
  • Limited access to system procedures and tables requiring advanced permissions
  • No Oracle RAC (Real Application Clusters) support for high-availability Oracle deployments

Instaclustr

  • Pricing is only obtainable through a configurator or sales conversation, so comparing against AWS MSK or Confluent list prices requires several rounds of quotes rather than a spreadsheet.
  • It manages infrastructure, not data modelling, so a poor Cassandra partition key or a mis-sized Kafka topic still causes outages that the managed service will not prevent.
  • NetApp ownership since 2022 has put the roadmap inside a large storage vendor, and the product is now one line in a portfolio rather than the whole company.
  • The catalogue is broad but each technology is served at a general level, so teams needing deep, vendor-specific tuning often find a specialist provider goes further on their one technology.
  • Bring your own cloud reduces lock-in but shifts networking, IAM and VPC peering complexity onto the customer, which needs cloud engineering capacity the managed service was meant to save.

Pricing, plan by plan

Amazon RDS

Free
  • On-Demand Instances$undefined/per second
  • Reserved Instances$undefined/mo
  • Database Savings Plans$undefined/mo

Instaclustr

On request
  • Instaclustr Managed Platform$undefined/month
    • Priced per node size, technology, cloud provider and region
    • Interactive calculator requires configuration before a figure appears
    • Discounts on 12 month commitment

Which should you pick?

Choose Amazon RDS if

  • You need multiple db engines.
  • You want to start without paying.
  • You work on AWS Cloud, Multi-AZ, Multi-region.
  • You also want automated backups.
Amazon RDS review

Choose Instaclustr if

  • You need unmodified open source.
  • You work on Cloud, Linux.
  • You also want bring your own cloud.
Instaclustr review

Questions people ask

Is Amazon RDS or Instaclustr better?
Neither clearly leads. Amazon RDS starts at Free and Instaclustr at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon RDS or Instaclustr?
Amazon RDS has a free tier; the other does not. Paid plans start at Free for Amazon RDS and On request for Instaclustr.
Does Amazon RDS or Instaclustr run on more platforms?
Amazon RDS runs on AWS Cloud, Multi-AZ, Multi-region. Instaclustr runs on Cloud, Linux.
Can I use Amazon RDS for free?
Yes. Amazon RDS has a free tier, so you can try it without paying. Instaclustr starts at On request.
What is Amazon RDS best used for?
Amazon RDS is most often used for transaction processing, data storage, application backend, reporting. Of those, transaction processing and data storage are not what Instaclustr is typically brought in for.
What can Amazon RDS do that Instaclustr cannot?
Amazon RDS covers Multiple DB Engines, Automated Backups, Multi-AZ Deployment, Read Replicas. Instaclustr covers Unmodified open source, Bring your own cloud, Multi technology platform, 24/7 operations.

Answered from the vendors’ own pages

Amazon RDS: What is included in the AWS Free Tier for RDS?

For signups before July 15, 2025: 750 hours per month of single-AZ database instance usage (12 months), 20 GB General Purpose SSD storage monthly, 20 GB automated backup storage monthly, available engines include MySQL, MariaDB, PostgreSQL, SQL Server Express Edition. For signups after July 15, 2025: choice between Free Plan or Paid Plan, $100 in credits plus up to $100 additional credits for activating foundational services, credits valid 12 months. Free Tier unavailable in AWS GovCloud (US) and China (Beijing) regions.

Source
Instaclustr: Does Instaclustr modify the open source software?

No. Its stated commitment is one hundred per cent open source with no proprietary extensions, which is the main reason licence-averse buyers choose it.

Amazon RDS: How is data transfer priced in RDS?

Same Availability Zone (EC2 to RDS) is free. Multi-AZ replication is free. Cross-AZ within same region is 0.01 USD per GB in and out. Cross-region snapshots and backups follow standard data transfer charges.

Source
Instaclustr: Who owns Instaclustr?

NetApp, which acquired the company in 2022. It is now branded NetApp Instaclustr.

Amazon RDS: What database engines are supported by RDS?

Aurora, MySQL, PostgreSQL, MariaDB, Oracle, SQL Server, and IBM Db2. Pricing varies by engine.

Source
Instaclustr: Is pricing published?

No. There is an interactive calculator, but figures depend on technology, node size, cloud and region, and commitments are negotiated.

Amazon RDS: What cost components are included in RDS monthly pricing?

DB instance hours (billed in 1-second increments, 10-minute minimum), storage per GB per month, I/O requests (Aurora and magnetic storage only), provisioned IOPS per month, backup storage, and data transfer fees.

Source
Instaclustr: Can clusters run in my own cloud account?

Yes, through the bring-your-own-cloud model, so the infrastructure spend also counts toward your cloud commitment.

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