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Accounting · head to head

Stampli vs Unit21

Stampli logo

Stampli

Accounting

AI-powered accounts payable automation

From
$29/month
Rated
-
Unit21 logo

Unit21

Cybersecurity

No-code fraud and AML risk operations platform for fintechs and neobanks

From
On request
Rated
-

The short version

  • Each has a real cost: Stampli no transparent pricing published; quote-based model required; Unit21 it is built for fintech scale rather than card issuer scale, so organisations reaching very high transaction volumes generally re-evaluate against heavier platforms and face a migration.
  • They diverge on capability: Stampli covers AI invoice processing, Unit21 covers No-code rule builder.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Stampli and Unit21 actually diverge.

Attributes where Stampli and Unit21 differ
AttributeStampliUnit21
Starting price$29/monthOn request
Pricing modelsubscriptionquote
PlatformsWeb, Ios, AndroidWeb
CategoryAccountingCybersecurity
Founded2014Unknown

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 Stampli

  • AI invoice processing
  • Approval workflows
  • Vendor management
  • Payment processing
  • Audit trails
  • NetSuite
  • Sage Intacct
  • QuickBooks

Only in Unit21

  • No-code rule builder
  • Case management
  • SAR filing
  • Backtesting
  • Identity and device signals
  • Data ingestion API

What people use each for

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

Stampli

  • Accounts payable automationnot Unit21
  • Invoice processing and capturenot Unit21
  • Vendor managementnot Unit21
  • Expense management and procurementnot Unit21

Unit21

  • A neobank whose sponsor bank requires a documented monitoring programme before it will keep the BIN sponsorshipnot Stampli
  • A crypto exchange needing SAR filing and case management without building an internal compliance engineering teamnot Stampli
  • A payments startup where the fraud lead needs to ship a new rule the same day a new attack pattern appearsnot Stampli
  • A lender consolidating fraud alerts from three point tools into one investigator queue with a single audit trailnot Stampli

Where each one falls short

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

Stampli

  • No transparent pricing published; quote-based model required
  • Specific pricing for individual modules or add-ons not available on pricing page
  • Cost varies based on invoice volume, complexity, and customization needs

Unit21

  • It is built for fintech scale rather than card issuer scale, so organisations reaching very high transaction volumes generally re-evaluate against heavier platforms and face a migration.
  • No-code rule authoring shifts power to the risk team, which is the point, but without governance it produces rule sprawl that nobody can explain to an examiner two years later.
  • Detection quality depends on the signals you feed it, so a thin integration produces thin results and the platform cannot compensate with proprietary consortium data the way larger vendors do.
  • Pricing is quoted by volume with an annual commitment, so a fintech whose growth stalls pays for headroom it did not use.
  • SAR filing coverage is oriented to United States FinCEN reporting, so firms filing in the United Kingdom, European Union or Asia handle those submissions outside the tool.

Pricing, plan by plan

Stampli

$29/month
  • Essential$undefined/month
    • Invoice processing
    • Basic approvals
    • Email notifications
  • Professional$undefined/month
    • AI-powered coding
    • Advanced workflows
    • ERP integrations
  • Enterprise$undefined/month
    • Custom workflows
    • API access
    • Dedicated support

Unit21

On request
  • Unit21 Platform$undefined/year
    • Priced by monitored volume and modules, annual contract
    • Fraud, AML and case management packaged separately
    • Implementation and historical data backfill quoted with the subscription

Which should you pick?

Choose Stampli if

  • You need ai invoice processing.
  • You work on Web, Ios, Android.
  • You also want approval workflows.

Choose Unit21 if

  • You need no-code rule builder.
  • You also want case management.

Questions people ask

Is Stampli or Unit21 better?
Neither clearly leads. Stampli starts at $29/month and Unit21 at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stampli or Unit21?
Stampli starts at $29/month and Unit21 at On request.
Does Stampli or Unit21 run on more platforms?
Stampli runs on Web, Ios, Android. Unit21 runs on Web.
What is Stampli best used for?
Stampli is most often used for accounts payable automation, invoice processing and capture, vendor management, expense management and procurement. Of those, accounts payable automation and invoice processing and capture are not what Unit21 is typically brought in for.
What can Stampli do that Unit21 cannot?
Stampli covers AI invoice processing, Approval workflows, Vendor management, Payment processing. Unit21 covers No-code rule builder, Case management, SAR filing, Backtesting.

Answered from the vendors’ own pages

Stampli: What does Stampli cost?

Stampli does not publish fixed pricing. The company uses a custom quote-based model. Visitors are directed to 'Request a Quote' and meet with an AP expert to discuss pricing based on their specific invoice volume and requirements.

Source
Unit21: Do we need engineers to run it?

Only for the initial data integration. After that the design intent is that risk and compliance staff author and deploy rules themselves.

Stampli: What is included in Stampli's standard offering?

Stampli's core accounts payable solution includes unlimited invoice capture, entities/locations, vendors, and PO matching; automated processing via Stampli Cognitive AI; 12 pre-built reports; interactive dashboards; a dedicated Customer Success Manager; and support with under 90-second response time.

Source
Unit21: Does it file SARs?

Yes, it generates and electronically files suspicious activity reports to FinCEN. Non-US regimes are not covered to the same depth.

Stampli: How long does it take to implement Stampli?

Stampli uses a 'fulfillment-first' implementation approach and deploys in weeks versus competitors requiring months or longer.

Source
Unit21: Can we test a rule before it goes live?

Yes. Backtesting against historical data to see projected alert volume is one of the more useful parts of the product, because alert volume is the real cost.

Stampli: What add-on modules are available with Stampli?

Optional modules include Procurement, Direct Pay functionality, credit card programs, advanced vendor management, and expense management. Pricing for add-ons requires requesting a custom quote.

Source
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