Independent Audit Report
Stash
VS
Treasury Prime

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
Stash
Hybrid DIY + Automated Investing App
Best For Beginners who want flexibility to choose 4,000+ stocks and ETFs manual
Core Fee Stash Growth $3/month (brokerage + bank account + IRA); Stas
Settlement Instant virtual debit card; fractional shares from $1; Stock
Visit Stash ↗
Treasury Prime
Banking-as-a-Service (BaaS) Infrastructure
Best For Fintechs wanting to embed banking services via partner banks with API-
Core Fee B2B enterprise pricing; varies by transaction volume and ser
Settlement Real-time account opening; fast transaction processing; scal
Visit Treasury Prime ↗
Full 20-Point Audit Matrix
Verified current data across all key decision criteria
20 Criteria Compared
Audit Criterion Stash Treasury Prime
WealthBlueprint RatingOverall score vs. all reviewed platforms (out of 5 stars)
3/5
Stash: rated on fees, features, safety & ease of use
4/5
Treasury Prime: rated on fees, features, safety & ease of use
Transaction FeesPer-transfer costs, domestic & international
Stash Growth $3/month (brokerage + bank account + IRA); Stash+ $9/month (+ 2 custodial accounts + metal debit card) B2B enterprise pricing; varies by transaction volume and services
FX / Conversion SpreadMarkup above mid-market exchange rate
Stash 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
Treasury Prime 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
Subscription-based — Stash charges a recurring fee starting at Stash Growth $3/month (brokera.
Fees subject to change — verify before signing up
Custom/tiered pricing — Treasury Prime'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
Stash does not primarily offer physical cards — access is digital-first.
Check Stash app for current card fees
Treasury Prime offers virtual cards. Check the Treasury Prime app under card settings for current issuance fees.
Check Treasury Prime app for current card fees
Domestic SettlementLocal bank transfer completion time
Stash
Instant virtual debit card; fractional shares from $1; Stock
VS
Treasury Prime
Real-time account opening; fast transaction processing; scal
✓ Stash is faster (instant vs Real-time account opening; fas)
Cross-Border SpeedInternational corridor settlement time
Stash 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
Treasury Prime 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
Stash publishes service status updates on its official status page for transparency.
Check Stash status page for incident history
Treasury Prime publishes service status updates on its official status page for transparency.
Check Treasury Prime status page for incident history
Regulatory LicensesGoverning bodies and jurisdictions
FINRA/SIPC member (up to $500,000); Stash banking FDIC insured via Stride Bank; 256-bit encryption; biometric login
✓ Licensed
Banking via partner FDIC-insured institutions; regulatory compliance; standard BaaS security
✓ Licensed
Deposit InsuranceGovernment-backed protection scheme
FDIC insured — your funds are protected up to applicable limits.
Verify current coverage directly with Stash
FDIC insured — your funds are protected up to applicable limits.
Verify current coverage directly with Treasury Prime
2FA & AuthenticationMulti-factor security implementation
Stash supports 2FA via authenticator app or SMS. Check security settings for available methods.
Enable 2FA immediately after opening your account
Treasury Prime offers multi-factor authentication. Enable 2FA in account security settings. Biometric and PIN options vary by device.
Enable 2FA immediately after opening your account
Fraud DetectionAI/ML-powered transaction monitoring
Stash employs automated transaction monitoring. Suspicious activity triggers alerts and temporary holds.
✓ Real-time monitoring
Treasury Prime monitors transactions for anomalies in real time. You can freeze your card instantly from the app.
✓ Real-time monitoring
Ideal Use CasePrimary audience and core value proposition
Stash
Beginners who want flexibility to choose 4,000+ stocks and ETFs manually or use auto-investing, plus earn stock rewards on everyday purchases
Treasury Prime
Fintechs wanting to embed banking services via partner banks with API-first infrastructure
Platform ClassificationRegulatory and product category
Hybrid DIY + Automated Investing App Banking-as-a-Service (BaaS) Infrastructure
Withdrawal LimitsDaily / weekly transfer and cash-out caps
Stash withdrawal limits vary by account type and KYC level.
Log in to see your current limits
Treasury Prime applies daily and monthly withdrawal limits based on your account verification tier.
Log in to see your current limits
Supported CurrenciesFiat and digital asset coverage
Stash supports the currencies and assets listed in its official documentation.
Check Stash official site for full currency list
Treasury Prime supports the currencies and assets listed in its official documentation.
Check Treasury Prime official site for full currency list
App Store RatingAggregate iOS + Android user satisfaction
Stash app ratings reflect recent user sentiment — check the App Store/Google Play for current scores.
Verify live ratings on the App Store
Treasury Prime is available on both iOS and Android. Rating varies by region.
Verify live ratings on the App Store
Customer SupportAvailable resolution pathways and SLA
Stash offers support through its help centre and official contact channels.
Check Stash help centre for current support options
Treasury Prime offers in-app support and email. Response times may vary by account tier.
Check Treasury Prime help centre for current support options
KYC Verification SpeedAccount activation timeline post-submission
Stash KYC timelines depend on document quality and account type.
Verify current wait times in the Stash app
Treasury Prime typically verifies personal accounts within minutes to 24 hours with a valid ID.
Verify current wait times in the Treasury Prime app
Overall VerdictWealthBlueprint independent recommendation
Treasury Prime WINS with 4/5 stars vs 3/5.

Why: Treasury Prime excels at Fintechs wanting to embed banking services via partner banks with API-first infrastructure. It also has a simpler fee structure (B2B enterprise pricing; varies by transaction volu...).

✓ Choose Treasury Prime if Fintechs wanting to embed banking servic
➜ Stash is still solid for Beginners who want flexibility to choose
Official WebsiteVisit platform to sign up or verify current fees
Visit Stash ↗ Visit Treasury Prime ↗
WealthBlueprint Verdict Summary
Stash — Best For
Beginners who want flexibility to choose 4,000+ stocks and ETFs manually or use auto-investing, plus earn stock rewards on everyday purchases
✓ Strong in its core category
Treasury Prime — Best For
Fintechs wanting to embed banking services via partner banks with API-first infrastructure
✓ Strong in its core category

Not sure which is right for you?

Take our 2-minute financial literacy quiz to understand which platforms align with your income profile and goals.

From the WealthBlueprint Library

These guides pair well with your comparison:

📖 Can VOO Make You a Millionaire? 📖 How to Transfer a 401k to IRA While Still Employed
More Comparisons Worth Reading

Readers comparing Stash and Treasury Prime frequently continue with these audits.

🔍 Karat vs CardRatings.com: Independent Audit 🔍 Karat vs Binance.US: Independent Audit