Square vs Mollie pricing
Both are in payments apis. Square is billed per transaction (2.6% + $0.15 in-person); Mollie is billed per transaction (1.8% + €0.25 eu cards). Numbers below are copied from each vendor's pricing page.
SquareFree tier or trial
- Free tier
- Free APIs/SDKs + sandbox; sellers pay per transaction
- Billed
- Per transaction (2.6% + $0.15 in-person)
- Best for
- Omnichannel (online + in-person) payments
- Verified
- Jun 27, 2026
MollieFree tier or trial
- Free tier
- No setup/monthly fee; test mode free, pay per transaction
- Billed
- Per transaction (1.8% + €0.25 EU cards)
- Best for
- European local-payment-methods PSP
- Verified
- Jun 27, 2026
Square plans
| Plan | Price | What it covers |
|---|---|---|
| Square Free | $0/mo | 2.6% + 15¢ in-person, 3.3% + 30¢ online/invoices, 3.5% + 15¢ keyed/card-on-file; no monthly fee |
| Square Plus | $49/mo | Lower in-person rate 2.5% + 15¢ and online 2.9% + 30¢, plus advanced POS features |
| Square Premium | $149/mo | Lowest in-person rate 2.4% + 15¢, online 2.9% + 30¢, advanced features |
| Online API | 2.9% + 30¢ | Flat rate for web/mobile app payments via the Payments API, all tiers |
| ACH via API | 1%, $1 min, $5 cap | Bank transfer payments processed through the API |
| Custom / Enterprise | Custom | Negotiated rates for businesses processing over $250,000 annually |
- Flat-rate pricing becomes expensive at high volume versus interchange-plus processors
- Online free-tier rate rose to 3.3% + 30¢ in October 2025
- Keyed/card-on-file transactions are costly at 3.5% + 15¢
Mollie plans
| Plan | Price | What it covers |
|---|---|---|
| Online, Cards (EEA consumer Visa/Mastercard) | 1.80% + €0.25 | Standard blended rate per successful transaction; no setup, monthly or cancellation fees. |
| Online, Cards (EEA commercial / American Express) | 2.90% + €0.25 | Commercial cards and Amex; non-EEA cards 3.25% + €0.25. |
| iDEAL / Wero | €0.32 | Flat per-transaction fee for the dominant Netherlands bank-transfer method. |
| Bancontact | 1.40% + €0.25 | Belgian local card scheme. |
| SEPA Direct Debit / Bank Transfer | €0.35 / €0.25 | Flat per-transaction; PayPal priced as PayPal + €0.10, Klarna 2.99%+€0.35 up to 4.99%+€0.40. |
| In-person, Pro Plan | €20 / month | Lower in-person rates (≈0.85%–2.50% + €0.10); a no-monthly-fee Pay-as-you-go tier also exists (1.20%–2.90%). |
Source: https://www.mollie.com/pricing