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E-Commerce · head to head

Mailchimp vs PostgreSQL

Mailchimp logo

Mailchimp

E-Commerce

Turn emails into revenue

From
Free
Rated
-
Full reviewWebsite
PostgreSQL logo

PostgreSQL

Databases

The world's most advanced open source relational database

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Mailchimp the free plan allows 250 contacts and 500 sends a month, with a 250 daily cap; PostgreSQL requires manual scaling across multiple machines for very large deployments
  • They diverge on capability: Mailchimp covers Email campaigns, PostgreSQL covers ACID Compliance.

Where they differ

Only the attributes on which Mailchimp and PostgreSQL actually diverge.

Attributes where Mailchimp and PostgreSQL differ
AttributeMailchimpPostgreSQL
PlatformsWeb, iOS, AndroidLinux, Windows, macOS, BSD, Unix
CategoryE-CommerceDatabases
Founded20011996

Identical on both: starting price (Free), pricing model (Unknown), 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 Mailchimp

  • Email campaigns
  • Marketing automation
  • Landing pages
  • Forms & popups
  • Audience management
  • Content studio
  • Analytics
  • Social media

Only in PostgreSQL

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

What people use each for

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

Mailchimp

  • Email newslettersnot PostgreSQL
  • E-commerce marketingnot PostgreSQL
  • Lead generationnot PostgreSQL
  • Customer engagementnot PostgreSQL
  • Marketing automationnot PostgreSQL

PostgreSQL

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

Where each one falls short

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

Mailchimp

  • The free plan allows 250 contacts and 500 sends a month, with a 250 daily cap
  • Price is driven by contact count, so the list growing raises the bill regardless of how much you send
  • Send allowances are a multiple of contacts, 10x on Essentials and 12x on Standard, so a large list with heavy sending forces a tier change
  • Essentials allows 3 seats and Standard 5; unlimited seats need Premium at $350 a month
  • The headline $13 and $20 prices are for 500 contacts, not a flat rate

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

Pricing, plan by plan

Mailchimp

Free
  • FreeFree
    • 250 contacts
    • 500 sends per month
    • Basic email campaigns
  • Essentials$13/month
    • 500+ contacts
    • Email campaigns
    • Basic automation
  • Standard$20/month
    • Advanced automation
    • Segmentation
    • Landing pages

PostgreSQL

Free

No published plan breakdown. See the PostgreSQL review.

Which should you pick?

Choose Mailchimp if

  • You need email campaigns.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want marketing automation.
Mailchimp review

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

Questions people ask

Is Mailchimp or PostgreSQL better?
Neither clearly leads. Mailchimp starts at Free and PostgreSQL at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mailchimp or PostgreSQL?
Mailchimp starts at Free and PostgreSQL at Free.
Does Mailchimp or PostgreSQL run on more platforms?
Mailchimp runs on Web, iOS, Android. PostgreSQL runs on Linux, Windows, macOS, BSD, Unix.
Can I use Mailchimp for free?
Both have a free tier, so you can try either at no cost before committing.
What is Mailchimp best used for?
Mailchimp is most often used for email newsletters, e-commerce marketing, lead generation, customer engagement. Of those, email newsletters and e-commerce marketing are not what PostgreSQL is typically brought in for.
What can Mailchimp do that PostgreSQL cannot?
Mailchimp covers Email campaigns, Marketing automation, Landing pages, Forms & popups. PostgreSQL covers ACID Compliance, JSON/JSONB Support, Full-text Search, Extensibility.

Answered from the vendors’ own pages

Mailchimp: Does Mailchimp offer a free plan?

Yes, Mailchimp's free plan supports up to 250 contacts and 500 sends per month with a 250-per-day cap.

Source
PostgreSQL: Is PostgreSQL completely free?

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

Source
Mailchimp: What email features does Mailchimp include?

Mailchimp provides email campaign builder, automation sequences, segmentation, contact management, and A/B testing for email marketing.

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
Mailchimp: Can Mailchimp integrate with e-commerce platforms?

Yes, Mailchimp integrates with Shopify, WooCommerce, Squarespace, and other e-commerce platforms for customer sync and abandoned cart automation.

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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