Mollie vs Adyen: Two Dutch Companies, Two Paths
Both Mollie and Adyen were born in the Netherlands just two years apart. Both started as payment gateways for the European market. Today they are two fundamentally different companies: Mollie — champion of SMBs, Adyen — enterprise infrastructure. But for companies at the intersection of segments (€1-10M volume), the choice isn’t obvious.
Sites: mollie.com | adyen.com
Scenario 1: WooCommerce Store in the Netherlands
Volume: €50K/month, 80% iDEAL, 20% cards.
Mollie is the natural choice here. WooCommerce integration in 2 clicks, €0.29 commission for iDEAL (vs ~€0.25 for Adyen — but a 4-cent difference doesn’t outweigh convenience). Mollie Dashboard is intuitive for a store owner without a technical background.
Adyen is overkill for this scenario: the SME program requires €1M+ volume, integration is more complex, onboarding takes longer. Verdict: Mollie.
Scenario 2: SaaS Platform with €5M ARR, Customers in 15 Countries
Model: B2B subscriptions, average €200/month.
Here the picture changes. Mollie supports subscriptions, but its recurring billing is primitive: no automatic payment retry, no dunning management, no Smart Retries. Adyen offers a full RevenueProtect platform that automatically selects the optimal moment for retrying payments, reducing involuntary churn by 15-25%.
Adyen also provides direct acquiring in most European countries: transactions are processed locally, without cross-border fees. At €200 average ticket, this saves 0.3-0.5% effective commission.
Verdict: Adyen, if you’re ready for 2-4 weeks of integration.
Scenario 3: B2C Marketplace Launching in Germany
Plan: Germany → France → Poland within 6 months.
Mollie offers a fast start: register today, accept payments tomorrow. Local methods (SOFORT, Giropay, Bancontact, BLIK) are enabled with checkboxes in the dashboard. Klarna BNPL is built-in — no separate contract needed.
Adyen supports more local methods (250+ vs 30+ for Mollie) and delivers better approval rates (93-97% vs 88-93%), but onboarding takes 3-6 weeks.
For a marketplace with aggressive expansion plans: Mollie for the first 3 months (Germany only) → migrate to Adyen when adding 4+ markets.
Scenario 4: Enterprise Retailer with Online + Offline (Omnichannel)
Volume: €100M+/year, 200 stores in 5 countries.
Adyen is virtually a monopolist in this segment. Unified Commerce (single platform for online and offline payments) is unavailable at Mollie. POS terminals, Tap to Pay, unified analytics across all channels — this is Adyen’s architectural advantage.
Mollie doesn’t work with offline payments at all.
Verdict: Adyen only.
Fee Comparison Table
| Fee | Mollie | Adyen (SME benchmark) |
|---|---|---|
| EU cards | 1.4% + €0.25 | 1.0-1.5% + €0.15-0.25 |
| iDEAL | €0.29 | ~€0.20-0.25 |
| SEPA DD | €0.25 | ~€0.15-0.20 |
| Klarna | 2.8% + €0.25 | negotiated |
| Monthly fee | €0 | ~€0-500 (custom) |
| Minimum volume | €0 | €1M+ |
Technical Integration
| Aspect | Mollie | Adyen |
|---|---|---|
| Ready plugins | WooCommerce, Shopify, Magento, PrestaShop | Magento, Salesforce, SAP |
| API | REST, simple | REST, powerful (more complex) |
| Documentation | Excellent, with examples | Excellent, enterprise-level |
| SDK | PHP, Python, JS, Ruby, Java, Go | Java, .NET, PHP, Python, Node.js |
| Sandbox | Instant | On request |
| Time to first payment | 15 minutes | 2-6 weeks |
| White-label | ❌ | ✅ |
Verdict: Not Competitors, But Ecosystem Neighbors
Mollie and Adyen don’t compete directly — they serve different segments. Mollie is for businesses that want to accept payments today without headaches. Adyen is for businesses optimizing payment infrastructure as a competitive advantage.
Practical rule:
- Volume €0-5M → Mollie
- €5-20M → transition zone; start with Mollie, plan for Adyen
- €20M+ → Adyen (or Stripe for SaaS)
- Omnichannel retail → always Adyen