Atomic Invest
Embedded Investing API for Fintechs & Banks
Best For
Banks, credit unions, and consumer apps wanting to embed fractional sh
Core Fee
B2B pricing only; enables banks, fintechs, and apps to offer
Settlement
API-driven account opening in minutes; real-time portfolio u
Relay
Small Business Banking & Money Management
Best For
Small businesses wanting unified banking, bill pay, expense tracking,
Core Fee
Free business checking; Relay Capital term loans available;
Settlement
Real-time cash flow visibility; fast account opening; on tra
Full 20-Point Audit Matrix
Verified current data across all key decision criteria
| Audit Criterion | Atomic Invest | Relay |
|---|---|---|
WealthBlueprint RatingOverall score vs. all reviewed platforms (out of 5 stars) |
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| Cost Structure & Fees | ||
Transaction FeesPer-transfer costs, domestic & international |
B2B pricing only; enables banks, fintechs, and apps to offer investing to their customers without building brokerage infrastructure from scratch | Free business checking; Relay Capital term loans available; no public pricing for loan products |
FX / Conversion SpreadMarkup above mid-market exchange rate |
Atomic Invest 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 |
Relay 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 — Atomic Invest's fee structure depends on your account tier or usage volume.
Fees subject to change — verify before signing up |
No monthly fees — Relay does not charge recurring maintenance fees.
Fees subject to change — verify before signing up |
Card Issuance FeesVirtual and physical card creation costs |
Atomic Invest does not primarily offer physical cards — access is digital-first.
Check Atomic Invest app for current card fees |
Relay offers virtual cards.
Card issuance is typically included at no extra cost.
Check Relay app for current card fees |
| Settlement Speed & Reliability | ||
Domestic SettlementLocal bank transfer completion time |
Atomic Invest
API-driven account opening in minutes; real-time portfolio u
VS
Relay
Real-time cash flow visibility; fast account opening; on tra
Both platforms offer comparable settlement speeds.
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Cross-Border SpeedInternational corridor settlement time |
Atomic Invest 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 |
Relay 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 |
Atomic Invest publishes service status updates on its official status page for transparency.
Check Atomic Invest status page for incident history |
Relay publishes service status updates on its official status page for transparency.
Check Relay status page for incident history |
| Security & Regulatory Standing | ||
Regulatory LicensesGoverning bodies and jurisdictions |
FINRA/SIPC member (up to $500,000); SEC-registered broker-dealer; SOC 2 Type II compliant; bank-grade encryption; regulatory-compliant onboarding APIs
✓ Licensed |
Surpassed $1.3B in deposits and 150,000 customers; $50M investment from General Catalyst (May 2026); banking via Thread Bank (FDIC);
✓ Licensed |
Deposit InsuranceGovernment-backed protection scheme |
Atomic Invest holds funds with regulated partner banks. Deposit insurance coverage may apply.
Verify current coverage directly with Atomic Invest |
FDIC insured — your funds are protected up to applicable limits.
Verify current coverage directly with Relay |
2FA & AuthenticationMulti-factor security implementation |
Atomic Invest offers multi-factor authentication. Enable 2FA in account security settings. Biometric and PIN options vary by device.
Enable 2FA immediately after opening your account |
Relay 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 |
Atomic Invest monitors transactions for anomalies in real time. You can freeze your card instantly from the app.
✓ Real-time monitoring |
Relay monitors transactions for anomalies in real time. You can freeze your card instantly from the app.
✓ Real-time monitoring |
| Features, Limits & Access | ||
Ideal Use CasePrimary audience and core value proposition |
Atomic Invest
Banks, credit unions, and consumer apps wanting to embed fractional share investing, automated portfolios, and IRAs directly into their existing products
Relay
Small businesses wanting unified banking, bill pay, expense tracking, and capital access in one platform
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Platform ClassificationRegulatory and product category |
Embedded Investing API for Fintechs & Banks | Small Business Banking & Money Management |
Withdrawal LimitsDaily / weekly transfer and cash-out caps |
Atomic Invest applies daily and monthly withdrawal limits based on your account verification tier.
Log in to see your current limits |
Relay applies tiered withdrawal limits based on your KYC verification level and business activity.
Log in to see your current limits |
Supported CurrenciesFiat and digital asset coverage |
Atomic Invest supports the currencies and assets listed in its official documentation.
Check Atomic Invest official site for full currency list |
Relay supports the currencies and assets listed in its official documentation.
Check Relay official site for full currency list |
| User Experience & Support | ||
App Store RatingAggregate iOS + Android user satisfaction |
Atomic Invest is available on both iOS and Android. Rating varies by region.
Verify live ratings on the App Store |
Relay is available on both iOS and Android. Rating varies by region.
Verify live ratings on the App Store |
Customer SupportAvailable resolution pathways and SLA |
Atomic Invest offers in-app support and email. Response times may vary by account tier.
Check Atomic Invest help centre for current support options |
Relay offers in-app support and email. Response times may vary by account tier.
Check Relay help centre for current support options |
KYC Verification SpeedAccount activation timeline post-submission |
Atomic Invest typically verifies personal accounts within minutes to 24 hours with a valid ID.
Verify current wait times in the Atomic Invest app |
Relay typically verifies personal accounts within minutes to 24 hours with a valid ID.
Verify current wait times in the Relay app |
Overall VerdictWealthBlueprint independent recommendation |
IT'S A TIE — both score 4/5 stars.
Choose Atomic Invest if you need: Banks, credit unions, and consumer apps wanting to embed fractional share investing, automated portfolios, and IRAs directly into their existing products. Choose Relay if you need: Small businesses wanting unified banking, bill pay, expense tracking, and capital access in one platform. ➜ Your choice depends on your specific needs |
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Official WebsiteVisit platform to sign up or verify current fees |
Visit Atomic Invest ↗ | Visit Relay ↗ |
WealthBlueprint Verdict Summary
Atomic Invest — Best For
Banks, credit unions, and consumer apps wanting to embed fractional share investing, automated portfolios, and IRAs directly into their existing products
✓ Strong in its core category
Relay — Best For
Small businesses wanting unified banking, bill pay, expense tracking, and capital access in one platform
✓ Strong in its core category
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