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Cybersecurity · head to head

BigID vs Ghostery

BigID logo

BigID

Cybersecurity

Data discovery and classification across cloud, on-premise and unstructured stores

From
On request
Rated
-
Full reviewWebsite
Ghostery logo

Ghostery

Browser Extensions

Block ads and stop trackers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Ghostery has a free tier, so it costs nothing to try first.
  • Each has a real cost: BigID pricing scales with data sources and volume, so the cost rises exactly as the estate you need to scan grows, and the modules shown in a demo, including AI security posture and headless deployment, are frequently separate licences that appear only in the final quote.; Ghostery database of trackers requires regular updates to remain current
  • They diverge on capability: BigID covers Structured and unstructured scanning, Ghostery covers Tracker blocking.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which BigID and Ghostery actually diverge.

Attributes where BigID and Ghostery differ
AttributeBigIDGhostery
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWeb, API, Self-hostedFirefox, Chrome, Edge, Safari, Opera
CategoryCybersecurityBrowser Extensions
FoundedUnknown2009

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 BigID

  • Structured and unstructured scanning
  • Identity correlation
  • Data security posture management
  • Access intelligence
  • Privacy request support
  • Retention and minimisation
  • AI data controls
  • Policy and remediation workflow

Only in Ghostery

  • Tracker blocking
  • Ad blocking
  • Privacy dashboard
  • Enhanced anti-tracking
  • Chrome support
  • Firefox support
  • Edge support
  • Safari support

What people use each for

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

BigID

  • A bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migrationnot Ghostery
  • A privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s recordsnot Ghostery
  • A security team wanting to find sensitive data sitting in publicly readable object storage buckets before an attacker doesnot Ghostery
  • A company building retrieval augmented AI that must exclude regulated personal data from the index it feeds to a modelnot Ghostery

Ghostery

  • Blocking ads and sponsored content before they loadnot BigID
  • Preventing tracker profiling by replacing identifying data with random valuesnot BigID
  • Automatically rejecting non-essential cookie consentnot BigID
  • Seeing which companies track a given site through WhoTracks.Menot BigID

Where each one falls short

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

BigID

  • Pricing scales with data sources and volume, so the cost rises exactly as the estate you need to scan grows, and the modules shown in a demo, including AI security posture and headless deployment, are frequently separate licences that appear only in the final quote.
  • Scanning large unstructured estates is slow and computationally expensive, so most organisations sample rather than scan everything, which reintroduces uncertainty into the very question they bought the tool to settle.
  • Classification accuracy on messy unstructured content requires tuning, and out of the box false positives on things like reference numbers create a large triage backlog that a small governance team cannot clear.
  • It discovers and reports but does not remediate, so realising value requires a separate process and often separate tooling to actually delete, restrict or move the data it flags.
  • It is built for large enterprises and both the price and the administrative overhead are disproportionate below a few thousand employees, where a lighter DSPM tool covers the security use case for far less.

Ghostery

  • Database of trackers requires regular updates to remain current
  • Some sites break functionality when trackers are aggressively blocked

Pricing, plan by plan

BigID

On request
  • BigID Platform$undefined/year
    • Priced by number of data sources and data volume
    • Discovery and classification core
    • Optional DSPM, access intelligence and AI security modules licensed separately

Ghostery

Free

No published plan breakdown. See the Ghostery review.

Which should you pick?

Choose BigID if

  • You need structured and unstructured scanning.
  • You work on Web, API, Self-hosted.
  • You also want identity correlation.
BigID review

Choose Ghostery if

  • You need tracker blocking.
  • You want to start without paying.
  • You work on Firefox, Chrome, Edge, Safari, Opera.
  • You also want ad blocking.
Ghostery review

Questions people ask

Is BigID or Ghostery better?
Neither clearly leads. BigID starts at On request and Ghostery at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BigID or Ghostery?
Ghostery has a free tier; the other does not. Paid plans start at On request for BigID and Free for Ghostery.
Does BigID or Ghostery run on more platforms?
BigID runs on Web, API, Self-hosted. Ghostery runs on Firefox, Chrome, Edge, Safari, Opera.
Can I use Ghostery for free?
Yes. Ghostery has a free tier, so you can try it without paying. BigID starts at On request.
What is BigID best used for?
BigID is most often used for a bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migration, a privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s records, a security team wanting to find sensitive data sitting in publicly readable object storage buckets before an attacker does, a company building retrieval augmented ai that must exclude regulated personal data from the index it feeds to a model. Of those, a bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migration and a privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s records are not what Ghostery is typically brought in for.
What can BigID do that Ghostery cannot?
BigID covers Structured and unstructured scanning, Identity correlation, Data security posture management, Access intelligence. Ghostery covers Tracker blocking, Ad blocking, Privacy dashboard, Enhanced anti-tracking.

Answered from the vendors’ own pages

BigID: What does BigID cost?

It is quoted by data source count and volume. Reported contracts run from roughly 15,000 to 175,000 US dollars a year, and add-on modules such as AI security posture are licensed on top.

Ghostery: Is Ghostery completely free?

Yes. Ghostery is a free ad blocking browser extension that you can install without paying a subscription. All of Ghostery's features are completely free to use, including ad blocking, tracker blocking, and cookie consent banner handling.

Source
BigID: Does it handle unstructured data?

Yes, and that is its main advantage. It classifies data in files and shares and correlates findings back to individuals, not just to data types.

Ghostery: What browsers does Ghostery support?

Ghostery is available for Firefox, Chrome, Opera, Edge and Safari as a browser extension.

Source
BigID: Will it delete the data it finds?

Not by itself in most deployments. It identifies and routes findings; deletion and remediation happen through your own processes or connected systems.

Ghostery: What data does Ghostery collect?

Ghostery collects no personal information, ensuring your privacy remains protected while using the extension.

Source
BigID: Is it a privacy tool or a security tool?

Both are sold from the same discovery core. Buyers increasingly come from security wanting data security posture management rather than from legal wanting privacy.

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