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Government · head to head

PublicInput vs Sardine

PublicInput logo

PublicInput

Government

Inclusive Community Engagement

From
$400/month
Free plan
No
Full reviewWebsite
Sardine logo

Sardine

Cybersecurity

Device intelligence and behaviour biometrics for fraud and compliance

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: PublicInput all three plans, Listen, Engage and Engage Plus, are listed as Request Pricing with no published rate, minimum or cost driver; Sardine signal quality depends on the SDK being embedded in your own web and mobile clients, so fraud improvements become dependent on your app release cycle and any coverage gap is a blind spot.
  • They diverge on capability: PublicInput covers Virtual Public Meetings, Sardine covers Device intelligence.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which PublicInput and Sardine actually diverge.

Attributes where PublicInput and Sardine differ
AttributePublicInputSardine
Starting price$400/monthOn request
Pricing modelsubscriptionquote
CategoryGovernmentCybersecurity
Founded2014Unknown

Identical on both: free tier (No), platforms (Web, Ios, Android), 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 PublicInput

  • Virtual Public Meetings
  • Online Surveys
  • Comment Management
  • Multi-language Support
  • Engagement Analytics
  • Zoom
  • Microsoft Teams
  • GovDelivery

Only in Sardine

  • Device intelligence
  • Behaviour biometrics
  • Scam detection
  • Onboarding risk scoring
  • AML transaction monitoring
  • Dispute and chargeback handling
  • Rules editor

What people use each for

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

PublicInput

  • Civic engagementnot Sardine
  • Government consultationnot Sardine
  • Public input collectionnot Sardine

Sardine

  • A neobank losing money to authorised push payment scams where the customer genuinely approved the transfernot PublicInput
  • A crypto exchange trying to detect accounts being operated by remote access rather than by their ownernot PublicInput
  • A fintech seeing synthetic identity signups that pass document verification but share device characteristicsnot PublicInput
  • A lender wanting first party fraud signals at application time that a credit bureau file does not containnot PublicInput

Where each one falls short

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

PublicInput

  • All three plans, Listen, Engage and Engage Plus, are listed as Request Pricing with no published rate, minimum or cost driver
  • HTML and CSS customization, custom workflows and approvals, and external system integration with Accela and ESRI are listed as Enterprise Capabilities rather than core platform features
  • Public meetings functionality is sold under a separate Meetings plan rather than being included with the Engagement plans
  • Getting a plan requires booking a consultation and a tailored demo rather than self serve signup

Sardine

  • Signal quality depends on the SDK being embedded in your own web and mobile clients, so fraud improvements become dependent on your app release cycle and any coverage gap is a blind spot.
  • Behavioural and device telemetry collection needs a documented lawful basis under GDPR, and EU privacy reviews frequently delay rollouts that were scoped as engineering work.
  • Pricing is per session or per active user, so a consumer product with many low value sessions pays in proportion to traffic rather than to fraud exposure.
  • As a younger private company it lacks the enforcement-tested audit history that a bank examiner expects, which makes it a harder sell inside a regulated bank than inside a fintech.
  • It is strongest on session-time signals and weaker as a system of record for long horizon AML typologies, so larger institutions end up running it alongside a traditional monitoring platform rather than instead of one.

Pricing, plan by plan

PublicInput

$400/month
  • Enterprise$400/month
    • Virtual Meetings
    • Surveys
    • Comment Management

Sardine

On request
  • Sardine$undefined/year
    • Priced per user session or per monthly active user
    • Annual contract with volume commitment
    • SDK for web, iOS and Android

Which should you pick?

Choose PublicInput if

  • You need virtual public meetings.
  • You work on Web, Ios, Android.
  • You also want online surveys.
PublicInput review

Choose Sardine if

  • You need device intelligence.
  • You work on Web, iOS, Android.
  • You also want behaviour biometrics.
Sardine review

Questions people ask

Is PublicInput or Sardine better?
Neither clearly leads. PublicInput starts at $400/month and Sardine at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PublicInput or Sardine?
PublicInput starts at $400/month and Sardine at On request.
Does PublicInput or Sardine run on more platforms?
PublicInput runs on Web, Ios, Android. Sardine runs on Web, iOS, Android.
What is PublicInput best used for?
PublicInput is most often used for civic engagement, government consultation, public input collection. Of those, civic engagement and government consultation are not what Sardine is typically brought in for.
What can PublicInput do that Sardine cannot?
PublicInput covers Virtual Public Meetings, Online Surveys, Comment Management, Multi-language Support. Sardine covers Device intelligence, Behaviour biometrics, Scam detection, Onboarding risk scoring.

Answered from the vendors’ own pages

PublicInput: How much does PublicInput cost?

PublicInput does not publish pricing on their website. Customers must request a demo or book a meeting to receive a quote based on their specific needs.

Source
Sardine: Does Sardine do document verification?

It focuses on device, behavioural and transaction signals, and integrates identity verification providers rather than being one. Treat it as complementary to a KYC vendor.

PublicInput: What pricing plans does PublicInput offer?

PublicInput offers Engagement Plans and Meetings Plans, but specific pricing for each plan is not publicly available and requires contacting their sales team.

Source
Sardine: What does it need from us to work?

An SDK in your web and mobile applications plus transaction feeds. Without the client side collector you lose the signals that differentiate it.

Sardine: Is pricing published?

No. It is quoted, typically per session or per monthly active user with an annual volume commitment.

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