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Cybersecurity · head to head

BigID vs Rock Solid

BigID logo

BigID

Cybersecurity

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

From
On request
Free plan
No
Full reviewWebsite
Rock Solid logo

Rock Solid

Government

Parks and Recreation Management

From
$350/month
Free plan
No
Full reviewWebsite

The short version

  • They diverge on capability: BigID covers Structured and unstructured scanning, Rock Solid covers Program Registration.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which BigID and Rock Solid actually diverge.

Attributes where BigID and Rock Solid differ
AttributeBigIDRock Solid
Starting priceOn request$350/month
Pricing modelquotesubscription
PlatformsWeb, API, Self-hostedWeb, Ios, Android
CategoryCybersecurityGovernment
FoundedUnknown2001

Identical on both: free tier (No), 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 Rock Solid

  • Program Registration
  • Facility Scheduling
  • Membership Management
  • Payment Processing
  • Reporting & Analytics
  • Payment Gateways
  • QuickBooks
  • Marketing Tools

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 Rock Solid
  • A privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s recordsnot Rock Solid
  • A security team wanting to find sensitive data sitting in publicly readable object storage buckets before an attacker doesnot Rock Solid
  • A company building retrieval augmented AI that must exclude regulated personal data from the index it feeds to a modelnot Rock Solid

Rock Solid

  • Citizen Servicesnot BigID
  • Records Managementnot BigID
  • Public Safetynot BigID
  • Civic Engagementnot 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.

Rock Solid

Nothing recorded yet. See the Rock Solid review.

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

Rock Solid

$350/month
  • Recreation Management$350/month
    • Program Registration
    • Facility Scheduling
    • Payment Processing

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 Rock Solid if

  • You need program registration.
  • You work on Web, Ios, Android.
  • You also want facility scheduling.
Rock Solid review

Questions people ask

Is BigID or Rock Solid better?
Neither clearly leads. BigID starts at On request and Rock Solid at $350/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BigID or Rock Solid?
BigID starts at On request and Rock Solid at $350/month.
Does BigID or Rock Solid run on more platforms?
BigID runs on Web, API, Self-hosted. Rock Solid runs on Web, Ios, Android.
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 Rock Solid is typically brought in for.
What can BigID do that Rock Solid cannot?
BigID covers Structured and unstructured scanning, Identity correlation, Data security posture management, Access intelligence. Rock Solid covers Program Registration, Facility Scheduling, Membership Management, Payment Processing.

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.

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.

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.

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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