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Databases · head to head

Apache Solr vs Glassbox

Apache Solr logo

Apache Solr

Databases

Enterprise search platform built on Apache Lucene

From
Free
Rated
-
Full reviewWebsite
Glassbox logo

Glassbox

Business Intelligence

Digital experience intelligence

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Apache Solr has a free tier, so it costs nothing to try first.
  • Each has a real cost: Apache Solr xML-heavy configuration and a developer experience that feels dated beside newer engines; Glassbox no fixed pricing tiers published; custom quotes required based on package, data retention, and session volume
  • They diverge on capability: Apache Solr covers Lucene-based indexing, Glassbox covers Session Replay.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Apache Solr and Glassbox actually diverge.

Attributes where Apache Solr and Glassbox differ
AttributeApache SolrGlassbox
Starting priceFreeOn request
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, Mobile, Hybrid
CategoryDatabasesBusiness Intelligence
FoundedUnknown2010

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 Apache Solr

  • Lucene-based indexing
  • Faceted search
  • SolrCloud
  • Schema control

Only in Glassbox

  • Session Replay
  • Struggle Detection
  • Journey Mapping
  • AI Insights
  • Voice of Customer
  • Adobe Analytics
  • Google Analytics
  • Salesforce

What people use each for

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

Apache Solr

  • Library, archive and catalogue search where faceting is centralnot Glassbox
  • Long-lived enterprise deployments valuing stability over noveltynot Glassbox
  • Search requiring precise, explicitly configured relevance tuningnot Glassbox

Glassbox

  • User experience analysisnot Apache Solr
  • Bug reproductionnot Apache Solr
  • Conversion optimizationnot Apache Solr
  • Customer journey mappingnot Apache Solr
  • Usability testingnot Apache Solr

Where each one falls short

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

Apache Solr

  • XML-heavy configuration and a developer experience that feels dated beside newer engines
  • SolrCloud depends on ZooKeeper, adding a component Elasticsearch removed years ago
  • Smaller mindshare now, so newer tutorials, hiring and integrations favour Elasticsearch
  • Considerably heavier than a purpose-built application search engine

Glassbox

  • No fixed pricing tiers published; custom quotes required based on package, data retention, and session volume

Pricing, plan by plan

Apache Solr

Free
  • Apache SolrFree
    • Full functionality
    • No usage limits
    • Community support

Glassbox

On request
  • CustomFree
    • Full Platform
    • Mobile Analytics
    • Enterprise Support

Which should you pick?

Choose Apache Solr if

  • You need lucene-based indexing.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want faceted search.
Apache Solr review

Choose Glassbox if

  • You need session replay.
  • You work on Web, Mobile, Hybrid.
  • You also want struggle detection.
Glassbox review

Questions people ask

Is Apache Solr or Glassbox better?
Neither clearly leads. Apache Solr starts at Free and Glassbox at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apache Solr or Glassbox?
Apache Solr has a free tier; the other does not. Paid plans start at Free for Apache Solr and On request for Glassbox.
Does Apache Solr or Glassbox run on more platforms?
Apache Solr runs on Linux, Docker, Kubernetes, Self-hosted. Glassbox runs on Web, Mobile, Hybrid.
Can I use Apache Solr for free?
Yes. Apache Solr has a free tier, so you can try it without paying. Glassbox starts at On request.
What is Apache Solr best used for?
Apache Solr is most often used for library, archive and catalogue search where faceting is central, long-lived enterprise deployments valuing stability over novelty, search requiring precise, explicitly configured relevance tuning. Of those, library, archive and catalogue search where faceting is central and long-lived enterprise deployments valuing stability over novelty are not what Glassbox is typically brought in for.
What can Apache Solr do that Glassbox cannot?
Apache Solr covers Lucene-based indexing, Faceted search, SolrCloud, Schema control. Glassbox covers Session Replay, Struggle Detection, Journey Mapping, AI Insights.

Answered from the vendors’ own pages

Apache Solr: Is Apache Solr free?

Yes, open source under the Apache Software Foundation.

Glassbox: How much does Glassbox cost?

Glassbox uses custom pricing based on three factors: the selected package (Production Operation, Marketing/Business, or Product), data retention period, and session volume. The vendor encourages contacting sales to build customized packages.

Source
Apache Solr: Solr or Elasticsearch?

Both are built on Lucene. Elasticsearch has the larger ecosystem and a friendlier API; Solr is very mature and strong on faceted search, and remains common in library and catalogue systems.

Glassbox: Does Glassbox offer add-ons for specific industries?

Yes, Glassbox offers specialized add-on solutions including fraud prevention, accessibility features, and call center solutions tailored for financial organizations.

Source
Apache Solr: Is Solr still maintained?

Yes, actively, as a top-level Apache project.

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