Head-to-Head Specification Audit
Klaviyo vs Adyen
eCommerce Email & SMS Marketing · Global
Specification Matrix
| Metric | Klaviyo | Adyen |
|---|---|---|
| Starting Price | $20/mo | $0/moBetter |
| API Rate Limit | 100 req/min | 500 req/minBetter |
| Target Country | Global | Global |
| Category | Marketing Automation | Payments Platform |
| Compliance (vendor-stated) | CCPA, GDPR, SOC2 | PCI-DSS, SOC2, GDPR, PSD2, ISO27001 |
| Hosting Regions | US-East, EU-West | EU-West, US-East, AP-Southeast, EU-Central |
| Native Integrations | 6 listedTie | 6 listedTie |
Klaviyo — Key Specs
Vendor-stated- ✓Best eCommerce email platform — native Shopify/WooCommerce integration
- ✓AI predictive analytics: CLV, churn, next purchase date predictions
- ✓SOC 2 Type II, GDPR, CCPA compliant
- ✓SMS marketing with carrier-compliant opt-in flows
Adyen — Key Specs
Vendor-stated- ✓Single acquiring platform for 200+ payment methods globally
- ✓Issuing: virtual/physical cards for expense management
- ✓PSD2 SCA built-in with AI-powered SCA exemption engine
- ✓EU data residency, GDPR DPA, PCI DSS Level 1
Frequently Asked Questions
Which is lower-priced, Klaviyo or Adyen?+
Adyen starts at Free plan available, which is lower than Klaviyo at $20/mo. Verify current pricing on each vendor's website.
Which compliance frameworks do Klaviyo and Adyen list?+
Both list GDPR, SOC2 in their vendor documentation. Klaviyo additionally lists CCPA. Adyen additionally lists PCI-DSS, PSD2, ISO27001. These are vendor-stated frameworks. VektorIndex has not independently audited these claims.
Which has a higher documented API rate limit — Klaviyo or Adyen?+
Adyen has a higher documented API rate limit at 500 req/min versus Klaviyo at 100 req/min.
Which data hosting regions do Klaviyo and Adyen support?+
Klaviyo lists hosting regions: US-East, EU-West. Adyen lists hosting regions: EU-West, US-East, AP-Southeast, EU-Central. For data residency requirements in Global, confirm exact region configuration directly with each vendor.
Data last updated: 29 August 2026 — Sourced from official vendor documentation. Not independently audited. Report incorrect information
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