Softwr

Cybersecurity · head to head

BigID vs mySidewalk

BigID logo

BigID

Cybersecurity

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

From
On request
Free plan
No
Full reviewWebsite
mySidewalk logo

mySidewalk

Government

Community data dashboards for local government and public health, prewired to federal datasets

From
On request
Free plan
No
Full reviewWebsite

The short version

  • 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.; mySidewalk it produces analysis and presentation rather than operational change, so the value has to be re argued at every renewal against services with more visible outputs.
  • They diverge on capability: BigID covers Structured and unstructured scanning, mySidewalk covers Prewired federal datasets.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which BigID and mySidewalk actually diverge.

Attributes where BigID and mySidewalk differ
AttributeBigIDmySidewalk
PlatformsWeb, API, Self-hostedWeb
CategoryCybersecurityGovernment

Identical on both: starting price (On request), pricing model (quote), 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 mySidewalk

  • Prewired federal datasets
  • Margin of error handling
  • Custom geographies
  • Published dashboards
  • Local data integration
  • Report generation

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

mySidewalk

  • A public health department producing a community health needs assessment on deadlinenot BigID
  • A city applying for federal funding that requires demographic and disparity evidence for a service areanot BigID
  • An agency that lost its only analyst who understood American Community Survey margins of errornot BigID
  • A council wanting published neighbourhood indicator dashboards residents can browsenot 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.

mySidewalk

  • It produces analysis and presentation rather than operational change, so the value has to be re argued at every renewal against services with more visible outputs.
  • Budget frequently comes from a grant, which means the subscription is exposed when the grant cycle ends rather than being protected as core infrastructure.
  • The prewired datasets are American, so the platform has effectively no value outside United States federal statistical sources.
  • Analytical depth is bounded by what the platform exposes, so an agency with a genuine analyst will hit the ceiling and move to a statistical environment.
  • Small area estimates remain small area estimates, and presenting them as polished dashboards can lend unwarranted confidence to figures whose error bars overlap.

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

mySidewalk

On request
  • mySidewalk$undefined/year
    • Quoted annually by agency scope and dataset needs
    • Custom geography and local data integration work priced separately
    • No public price list, though agency contracts are public records

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 mySidewalk if

  • You need prewired federal datasets.
  • You also want margin of error handling.
mySidewalk review

Questions people ask

Is BigID or mySidewalk better?
Neither clearly leads. BigID starts at On request and mySidewalk at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BigID or mySidewalk?
BigID starts at On request and mySidewalk at On request.
Does BigID or mySidewalk run on more platforms?
BigID runs on Web, API, Self-hosted. mySidewalk runs on Web.
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 mySidewalk is typically brought in for.
What can BigID do that mySidewalk cannot?
BigID covers Structured and unstructured scanning, Identity correlation, Data security posture management, Access intelligence. mySidewalk covers Prewired federal datasets, Margin of error handling, Custom geographies, Published dashboards.

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.

mySidewalk: What problem does it actually solve?

Correct use of American Community Survey and federal health data for small geographies, which is difficult and is usually held by one person in an agency.

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.

mySidewalk: Is it useful outside the United States?

No. Its value is the maintained pipeline into US federal statistical datasets.

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.

mySidewalk: Who buys it?

Mostly public health departments and city planning or performance teams, often funded from a grant that requires the evidence it produces.

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.

mySidewalk: Can we see comparable contract values?

Yes. Agency contracts are public records and appear in council and health board agenda materials.

Share

Related pages

More on BigID

More on mySidewalk

Keep looking

Other head to heads