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Postgres vs Tricentis Tosca

Postgres logo

Postgres

Technology

The world's most advanced open source database

From
Free
Rated
-
Full reviewWebsite
Tricentis Tosca logo

Tricentis Tosca

Testing

Model based test automation for enterprise applications, with deep SAP and mainframe coverage

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Postgres has a free tier, so it costs nothing to try first.
  • Each has a real cost: Postgres each major version is supported for only 5 years after its initial release, after which it is end-of-life; Tricentis Tosca licensing is quoted per workstation at enterprise figures, so the tool only pays back where testing headcount is already large; a team of five will not recover the cost.
  • They diverge on capability: Postgres covers ACID compliance, Tricentis Tosca covers Model based test design.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Postgres and Tricentis Tosca actually diverge.

Attributes where Postgres and Tricentis Tosca differ
AttributePostgresTricentis Tosca
Starting priceFreeOn request
Pricing modelopen-sourcequote
Free tierYesNo
PlatformsLinux, Windows, Macos, DockerWindows, Web
CategoryTechnologyTesting
Founded1996Unknown

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

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 Postgres

  • ACID compliance
  • Complex queries
  • Foreign keys
  • Triggers
  • Views
  • Stored procedures
  • JSON/JSONB support
  • Full-text search

Only in Tricentis Tosca

  • Model based test design
  • SAP coverage
  • Risk based test selection
  • API and message layer testing
  • Test data management
  • Distributed execution

What people use each for

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

Postgres

  • Running a general purpose relational database for applicationsnot Tricentis Tosca
  • Self-hosting an open source SQL database with no licence feenot Tricentis Tosca
  • Workloads needing extensions, JSON and full text search in one enginenot Tricentis Tosca

Tricentis Tosca

  • Regression testing an SAP estate through an S/4HANA migration where thousands of transactions must be verifiednot Postgres
  • A regulated organisation that needs auditable evidence of what was tested before each releasenot Postgres
  • Testing a mixed estate of browser, Windows desktop and mainframe applications from one suitenot Postgres
  • A test centre of excellence with dozens of testers where per screen maintenance beats per test maintenancenot Postgres

Where each one falls short

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

Postgres

  • Each major version is supported for only 5 years after its initial release, after which it is end-of-life
  • Major version upgrades break on-disk compatibility and require a full dump and reload or the pg_upgrade tool
  • New major versions ship about once a year, so staying supported means a disruptive upgrade cycle
  • Minor releases contain only frequently-encountered bug fixes, low-risk fixes, security issues and data corruption fixes, so feature gaps are not addressed within a major version
  • There is no vendor SLA; commercial support must be bought separately from third party professional services listed by the project

Tricentis Tosca

  • Licensing is quoted per workstation at enterprise figures, so the tool only pays back where testing headcount is already large; a team of five will not recover the cost.
  • Building the initial application model takes months and is usually done with paid consultants, meaning value arrives long after the invoice does.
  • The authoring environment is Windows only and heavy, which sits awkwardly in organisations whose engineers work on macOS or Linux.
  • Tricentis has assembled its portfolio through acquisitions, so products sold together vary in how deeply they are integrated and a buyer should verify the joins rather than the diagram.
  • Skills are specific to Tosca and not transferable, so recruiting testers means hiring for a niche tool and losing a trained one hurts more than losing a Selenium engineer.

Pricing, plan by plan

Postgres

Free
  • Community EditionFree
    • Full database features
    • No limitations
    • Community support

Tricentis Tosca

On request
  • Tricentis Tosca$undefined/year
    • Quoted per workstation licence with separate execution agents and module packs
    • Implementation is normally sold with partner services, which typically exceed first year licence cost

Which should you pick?

Choose Postgres if

  • You need acid compliance.
  • You want to start without paying.
  • You work on Linux, Windows, Macos, Docker.
  • You also want complex queries.
Postgres review

Choose Tricentis Tosca if

  • You need model based test design.
  • You work on Windows, Web.
  • You also want sap coverage.
Tricentis Tosca review

Questions people ask

Is Postgres or Tricentis Tosca better?
Neither clearly leads. Postgres starts at Free and Tricentis Tosca at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postgres or Tricentis Tosca?
Postgres has a free tier; the other does not. Paid plans start at Free for Postgres and On request for Tricentis Tosca.
Does Postgres or Tricentis Tosca run on more platforms?
Postgres runs on Linux, Windows, Macos, Docker. Tricentis Tosca runs on Windows, Web.
Can I use Postgres for free?
Yes. Postgres has a free tier, so you can try it without paying. Tricentis Tosca starts at On request.
What is Postgres best used for?
Postgres is most often used for running a general purpose relational database for applications, self-hosting an open source sql database with no licence fee, workloads needing extensions, json and full text search in one engine. Of those, running a general purpose relational database for applications and self-hosting an open source sql database with no licence fee are not what Tricentis Tosca is typically brought in for.
What can Postgres do that Tricentis Tosca cannot?
Postgres covers ACID compliance, Complex queries, Foreign keys, Triggers. Tricentis Tosca covers Model based test design, SAP coverage, Risk based test selection, API and message layer testing.

Answered from the vendors’ own pages

Postgres: How much does PostgreSQL cost to use?

PostgreSQL is completely free to download, install, and use. No licensing fees, subscription costs, or per-seat charges apply. The database is open source under the PostgreSQL License. Source: https://www.postgresql.org

Source
Tricentis Tosca: Is Tosca scriptless?

Test assembly is scriptless, but non trivial estates still need TQL queries and custom modules, which is programming under another name.

Postgres: Are there commercial PostgreSQL support options available?

Official PostgreSQL (the project) is free. Commercial PostgreSQL services such as hosting, professional support, training, and managed database services are offered by third-party vendors, not the PostgreSQL project itself. Source: https://www.postgresql.org

Source
Tricentis Tosca: Why does it dominate SAP testing?

It holds SAP certification, covers SAP GUI and Fiori at transaction level, and is sold through the same integrators that run SAP programmes.

Postgres: Do I need a license to use PostgreSQL commercially?

No. PostgreSQL is open source under the PostgreSQL License, which permits free commercial use without royalties, licensing fees, or support obligations. Source: https://www.postgresql.org

Source
Tricentis Tosca: Can it replace Selenium for a web only product?

It can, but the economics do not work. Model based testing pays off across large heterogeneous estates, not one web application.

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