Independent Audit Report
Justworks
VS
Sardine

A comprehensive 20-point independent audit covering fees, FX rates, settlement architecture, regulatory standing, customer protection, and real-world performance benchmarks.

20 Audit Criteria Independent Analysis Current Verified Data Live Benchmarks
Justworks
PEO & Payroll Platform for SMBs
Best For Small to mid-sized businesses wanting a PEO solution with payroll, ben
Core Fee Custom pricing based on company size and services; not publi
Settlement Streamlined payroll; HR automation; employee self-service po
Visit Justworks ↗
Sardine
Fraud Prevention & Compliance Platform — Enterprise Service
Best For Fintechs, crypto exchanges, and financial institutions wanting real-ti
Core Fee B2B enterprise pricing; varies based on transaction volume,
Settlement Real-time fraud scoring; behavioral analytics; instant risk
Visit Sardine ↗
Full 20-Point Audit Matrix
Verified current data across all key decision criteria
20 Criteria Compared
Audit Criterion Justworks Sardine
WealthBlueprint RatingOverall score vs. all reviewed platforms (out of 5 stars)
4/5
Justworks: rated on fees, features, safety & ease of use
3/5
Sardine: rated on fees, features, safety & ease of use
Transaction FeesPer-transfer costs, domestic & international
Custom pricing based on company size and services; not publicly listed B2B enterprise pricing; varies based on transaction volume, integration scope, and services required
FX / Conversion SpreadMarkup above mid-market exchange rate
Justworks charges a conversion fee based on the currency pair and transfer amount. Always verify the all-in rate before sending.
Always check the live rate in the app
Sardine charges a conversion fee based on the currency pair and transfer amount. Always verify the all-in rate before sending.
Always check the live rate in the app
Account MaintenanceMonthly or annual account-keeping charges
Custom/tiered pricing — Justworks's fee structure depends on your account tier or usage volume.
Fees subject to change — verify before signing up
Custom/tiered pricing — Sardine's fee structure depends on your account tier or usage volume.
Fees subject to change — verify before signing up
Card Issuance FeesVirtual and physical card creation costs
Justworks does not primarily offer physical cards — access is digital-first.
Check Justworks app for current card fees
Sardine does not primarily offer physical cards — access is digital-first.
Check Sardine app for current card fees
Domestic SettlementLocal bank transfer completion time
Justworks
Streamlined payroll; HR automation; employee self-service po
VS
Sardine
Real-time fraud scoring; behavioral analytics; instant risk
✓ Sardine is faster (instant vs Streamlined payroll; HR automa)
Cross-Border SpeedInternational corridor settlement time
Justworks supports cross-border transfers via its payment rails. Actual delivery depends on the receiving bank and any compliance holds.
Check the app for live estimates
Sardine supports cross-border transfers via its payment rails. Actual delivery depends on the receiving bank and any compliance holds.
Check the app for live estimates
Uptime / ReliabilityReported annual platform availability rate
Justworks publishes service status updates on its official status page for transparency.
Check Justworks status page for incident history
Sardine publishes service status updates on its official status page for transparency.
Check Sardine status page for incident history
Regulatory LicensesGoverning bodies and jurisdictions
Standard HR compliance; certified PEO; insurance coverage; robust security; payroll tax filing included
✓ Licensed
Enterprise-grade security; SOC 2 compliant; advanced fraud detection algorithms; supports compliance with regulatory requirements
✓ Licensed
Deposit InsuranceGovernment-backed protection scheme
Justworks holds funds with regulated partner banks. Deposit insurance coverage may apply.
Verify current coverage directly with Justworks
Sardine holds funds with regulated partner banks. Deposit insurance coverage may apply.
Verify current coverage directly with Sardine
2FA & AuthenticationMulti-factor security implementation
Justworks supports 2FA via authenticator app or SMS. Check security settings for available methods.
Enable 2FA immediately after opening your account
Sardine supports 2FA via authenticator app or SMS. Check security settings for available methods.
Enable 2FA immediately after opening your account
Fraud DetectionAI/ML-powered transaction monitoring
Justworks employs automated transaction monitoring. Suspicious activity triggers alerts and temporary holds.
✓ Real-time monitoring
Sardine employs automated transaction monitoring. Suspicious activity triggers alerts and temporary holds.
✓ Real-time monitoring
Ideal Use CasePrimary audience and core value proposition
Justworks
Small to mid-sized businesses wanting a PEO solution with payroll, benefits, HR, and compliance support
Sardine
Fintechs, crypto exchanges, and financial institutions wanting real-time fraud detection, AML compliance, and risk management
Platform ClassificationRegulatory and product category
PEO & Payroll Platform for SMBs Fraud Prevention & Compliance Platform — Enterprise Service
Withdrawal LimitsDaily / weekly transfer and cash-out caps
Justworks withdrawal limits vary by account type and KYC level.
Log in to see your current limits
Sardine withdrawal limits vary by account type and KYC level.
Log in to see your current limits
Supported CurrenciesFiat and digital asset coverage
Justworks supports the currencies and assets listed in its official documentation.
Check Justworks official site for full currency list
Sardine supports the currencies and assets listed in its official documentation.
Check Sardine official site for full currency list
App Store RatingAggregate iOS + Android user satisfaction
Justworks app ratings reflect recent user sentiment — check the App Store/Google Play for current scores.
Verify live ratings on the App Store
Sardine app ratings reflect recent user sentiment — check the App Store/Google Play for current scores.
Verify live ratings on the App Store
Customer SupportAvailable resolution pathways and SLA
Justworks routes support through its official help channels. Priority queue access varies by plan.
Check Justworks help centre for current support options
Sardine routes support through its official help channels. Priority queue access varies by plan.
Check Sardine help centre for current support options
KYC Verification SpeedAccount activation timeline post-submission
Justworks KYC timelines depend on document quality and account type.
Verify current wait times in the Justworks app
Sardine KYC timelines depend on document quality and account type.
Verify current wait times in the Sardine app
Overall VerdictWealthBlueprint independent recommendation
Justworks WINS with 4/5 stars vs 3/5.

Why: Justworks excels at Small to mid-sized businesses wanting a PEO solution with payroll, benefits, HR, and compliance support. It also has a simpler fee structure (Custom pricing based on company size and services;...).

✓ Choose Justworks if Small to mid-sized businesses wanting a
➜ Sardine is still solid for Fintechs, crypto exchanges, and financia
Official WebsiteVisit platform to sign up or verify current fees
Visit Justworks ↗ Visit Sardine ↗
WealthBlueprint Verdict Summary
Justworks — Best For
Small to mid-sized businesses wanting a PEO solution with payroll, benefits, HR, and compliance support
✓ Strong in its core category
Sardine — Best For
Fintechs, crypto exchanges, and financial institutions wanting real-time fraud detection, AML compliance, and risk management
✓ Strong in its core category

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