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Database & Data Management · head to head

PostgreSQL vs Square Appointments

PostgreSQL logo

PostgreSQL

Database & Data Management

The world's most advanced open source relational database

From
Free
Rated
-
Full reviewWebsite
Square Appointments logo

Square Appointments

Scheduling & Booking

Free scheduling for beauty businesses

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: PostgreSQL requires manual scaling across multiple machines for very large deployments; Square Appointments the free plan is aimed at solo professionals; booking across multiple staff requires the paid Plus plan
  • They diverge on capability: PostgreSQL covers ACID Compliance, Square Appointments covers Online booking.

Where they differ

Only the attributes on which PostgreSQL and Square Appointments actually diverge.

Attributes where PostgreSQL and Square Appointments differ
AttributePostgreSQLSquare Appointments
Pricing modelUnknownsubscription
PlatformsLinux, Windows, macOS, BSD, UnixWeb, Ios, Android
CategoryDatabase & Data ManagementScheduling & Booking
Founded19962009

Identical on both: starting price (Free), free tier (Yes), 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 PostgreSQL

  • ACID Compliance
  • JSON/JSONB Support
  • Full-text Search
  • Extensibility
  • Advanced Indexing
  • Partitioning
  • Replication
  • pgAdmin

Only in Square Appointments

  • Online booking
  • Client management
  • Point of sale
  • Payment processing
  • Automated reminders
  • Instagram booking
  • Google booking
  • Mobile app

What people use each for

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

PostgreSQL

  • Transaction processingnot Square Appointments
  • Data storagenot Square Appointments
  • Application backendnot Square Appointments
  • Reportingnot Square Appointments
  • Data analyticsnot Square Appointments

Square Appointments

  • Online appointment booking for salons, barbers and personal servicesnot PostgreSQL
  • Taking card payments and deposits at the time of bookingnot PostgreSQL
  • Managing staff calendars, waitlists and no-show policiesnot PostgreSQL

Where each one falls short

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

PostgreSQL

  • Requires manual scaling across multiple machines for very large deployments
  • Performance tuning requires deep knowledge of database internals
  • No built-in graphical admin interface; command-line tools are primary method

Square Appointments

  • The free plan is aimed at solo professionals; booking across multiple staff requires the paid Plus plan
  • Cancellation policies, no-show fees and waitlists require the Plus plan
  • Resource management, service cost tracking and the future bookings report require the Premium plan
  • Custom processing rates are reserved for Square Pro, which is aimed at businesses processing over $250,000 a year
  • Card processing fees are charged on top of the plan fee on every tier including the free one

Pricing, plan by plan

PostgreSQL

Free

No published plan breakdown. See the PostgreSQL review.

Square Appointments

Free
  • FreeFree
    • Unlimited appointments
    • Online booking
    • Client management
  • Plus$29/month
    • Everything in Free
    • Multiple staff calendars
    • No-show protection
  • Premium$69/month
    • Everything in Plus
    • Multi-location
    • Staff management

Which should you pick?

Choose PostgreSQL if

  • You need acid compliance.
  • You want to start without paying.
  • You work on Linux, Windows, macOS, BSD, Unix.
  • You also want json/jsonb support.
PostgreSQL review

Choose Square Appointments if

  • You need online booking.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want client management.
Square Appointments review

Questions people ask

Is PostgreSQL or Square Appointments better?
Neither clearly leads. PostgreSQL starts at Free and Square Appointments at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostgreSQL or Square Appointments?
PostgreSQL starts at Free and Square Appointments at Free.
Does PostgreSQL or Square Appointments run on more platforms?
PostgreSQL runs on Linux, Windows, macOS, BSD, Unix. Square Appointments runs on Web, Ios, Android.
Can I use PostgreSQL for free?
Both have a free tier, so you can try either at no cost before committing.
What is PostgreSQL best used for?
PostgreSQL is most often used for transaction processing, data storage, application backend, reporting. Of those, transaction processing and data storage are not what Square Appointments is typically brought in for.
What can PostgreSQL do that Square Appointments cannot?
PostgreSQL covers ACID Compliance, JSON/JSONB Support, Full-text Search, Extensibility. Square Appointments covers Online booking, Client management, Point of sale, Payment processing.

Answered from the vendors’ own pages

PostgreSQL: Is PostgreSQL completely free?

Yes. PostgreSQL is completely free and open source with no licensing fees or restrictions on use.

Source
PostgreSQL: What platforms does PostgreSQL run on?

PostgreSQL runs on all major operating systems including Linux, Windows, macOS, BSD, and commercial Unix variants, and has been proven highly scalable managing terabytes to petabytes of data.

Source
PostgreSQL: What procedural languages are supported?

PostgreSQL supports stored functions and procedures in multiple languages including PL/pgSQL, Perl, Python, Tcl, Java, JavaScript, R, and Rust.

Source
PostgreSQL: What is ACID compliance in PostgreSQL?

PostgreSQL has been ACID-compliant since 2001, ensuring data integrity through atomicity, consistency, isolation, and durability guarantees for all transactions.

Source
PostgreSQL: Does PostgreSQL support JSON data?

Yes. PostgreSQL supports JSON and JSONB data types for storing and querying JSON documents, along with XML and other document formats.

Source
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