Is Auth0 or Postgres better?

Neither clearly leads. Auth0 starts at Free and Postgres at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Auth0 or Postgres?

Auth0 starts at Free and Postgres at Free.

Does Auth0 or Postgres run on more platforms?

Auth0 runs on Web, iOS, Android. Postgres runs on Linux, Windows, Macos, Docker.

Can I use Auth0 for free?

Both have a free tier, so you can try either at no cost before committing.

What is Auth0 best used for?

Auth0 is most often used for b2c authentication, b2b authentication, b2e authentication, api security. Of those, b2c authentication and b2b authentication are not what Postgres is typically brought in for.

What can Auth0 do that Postgres cannot?

Auth0 covers Universal login, Social login, Multi-factor authentication, Passwordless. Postgres covers ACID compliance, Complex queries, Foreign keys, Triggers.

Technology · head to head

Auth0 vs Postgres

Auth0

Technology

Secure access for everyone

From: Free
Rated: -

Full review Website

Postgres

Technology

The world's most advanced open source database

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Auth0 free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that; Postgres each major version is supported for only 5 years after its initial release, after which it is end-of-life
They diverge on capability: Auth0 covers Universal login, Postgres covers ACID compliance.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Auth0 and Postgres actually diverge.

Attributes where Auth0 and Postgres differ
Attribute	Auth0	Postgres
Pricing model	Unknown	open-source
Platforms	Web, iOS, Android	Linux, Windows, Macos, Docker
Founded	2013	1996

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Technology).

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 Auth0

Universal login
Social login
Multi-factor authentication
Passwordless
User management
Anomaly detection
Extensibility
Machine to machine

Only in Postgres

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

What people use each for

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

Auth0

B2C authenticationnot Postgres
B2B authenticationnot Postgres
B2E authenticationnot Postgres
API securitynot Postgres
Mobile app securitynot Postgres

Postgres

Running a general purpose relational database for applicationsnot Auth0
Self-hosting an open source SQL database with no licence feenot Auth0
Workloads needing extensions, JSON and full text search in one enginenot Auth0

Where each one falls short

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

Auth0

Free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that
Advanced features like MFA and RBAC only available on paid Essentials tier and above
Ownership by Okta introduces risk that independent product roadmap may change

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

Pricing, plan by plan

Auth0

Free

FreeFree
- Up to 25,000 monthly active users
- Basic authentication
- Email/password login
Essentials (B2C)$35/month
- Unlimited MAUs beyond free tier
- Multi-Factor Authentication
- Role-Based Access Control
Professional (B2C)$240/month
- All Essentials features
- Advanced security
- Custom branding

Postgres

Free

Community EditionFree
- Full database features
- No limitations
- Community support

Which should you pick?

Choose Auth0 if

You need universal login.
You want to start without paying.
You work on Web, iOS, Android.
You also want social login.

Auth0 review

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

Questions people ask

Is Auth0 or Postgres better?: Neither clearly leads. Auth0 starts at Free and Postgres at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Auth0 or Postgres?: Auth0 starts at Free and Postgres at Free.
Does Auth0 or Postgres run on more platforms?: Auth0 runs on Web, iOS, Android. Postgres runs on Linux, Windows, Macos, Docker.
Can I use Auth0 for free?: Both have a free tier, so you can try either at no cost before committing.
What is Auth0 best used for?: Auth0 is most often used for b2c authentication, b2b authentication, b2e authentication, api security. Of those, b2c authentication and b2b authentication are not what Postgres is typically brought in for.
What can Auth0 do that Postgres cannot?: Auth0 covers Universal login, Social login, Multi-factor authentication, Passwordless. Postgres covers ACID compliance, Complex queries, Foreign keys, Triggers.

Answered from the vendors’ own pages

Auth0: How much does Auth0 cost?

Auth0 has a Free tier for up to 25,000 monthly active users (MAUs). Paid plans start at $35/month (Essentials B2C) and scale to $240/month (Professional B2C) and higher for Enterprise. Pricing scales with MAU usage.

Source

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

Auth0: Does Auth0 include Multi-Factor Authentication?

No. MFA, RBAC (Role-Based Access Control), and premium support are not included in the free tier and require upgrading to paid Essentials plans or higher.

Source

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

Auth0: Is Auth0 independent or part of a larger company?

Auth0 was acquired by Okta in May 2021 for $6.5 billion. It now operates as a subsidiary business unit within Okta, but maintains its own brand and operations.

Source

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

Auth0: Who should use Auth0 vs Okta?

Auth0 is developer-focused and serves customer identity use cases (B2C). Okta serves workforce identity (B2B) and has broader enterprise features. Auth0 now serves both markets post-acquisition but maintains its developer-friendly positioning.

Source

Auth0 vs Postgres

Auth0

Postgres

The short version

Where they differ

What each one covers

Only in Auth0

Only in Postgres

What people use each for

Auth0

Postgres

Where each one falls short

Auth0

Postgres

Pricing, plan by plan

Auth0

Postgres

Which should you pick?

Choose Auth0 if

Choose Postgres if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Auth0

More on Postgres

Keep looking

Other head to heads