Is Mollie or Polar better?

Neither clearly leads. Mollie starts at £0.3/transaction and Polar at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Mollie or Polar?

Polar has a free tier; the other does not. Paid plans start at £0.3/transaction for Mollie and Free for Polar.

Does Mollie or Polar run on more platforms?

Mollie runs on Web, iOS, Android, API. Polar runs on Web, API.

Can I use Polar for free?

Yes. Polar has a free tier, so you can try it without paying. Mollie starts at £0.3/transaction.

What is Mollie best used for?

Mollie is most often used for a dutch or belgian shop where most customers pay by ideal or bancontact and the flat 30p beats a percentage rate on high-value baskets, a small merchant that wants published pricing rather than a sales call before it can model card costs, a subscription business in the eea collecting by sepa direct debit mandate instead of card, a marketplace or platform that needs one integration covering the main european local methods. Of those, a dutch or belgian shop where most customers pay by ideal or bancontact and the flat 30p beats a percentage rate on high-value baskets and a small merchant that wants published pricing rather than a sales call before it can model card costs are not what Polar is typically brought in for.

What can Mollie do that Polar cannot?

Mollie covers Local payment methods, Published rate card, Hosted checkout and payment links, Subscriptions API. Polar covers Usage Billing, Subscriptions, Seat Management, Prepaid Credits.

E-Commerce · head to head

Mollie vs Polar

Mollie

E-Commerce

European payment service provider with published per-transaction rates and no monthly fee on the online plan

From: £0.3/transaction
Rated: -

Full review Website

Polar

Accounting

Billing and revenue platform for AI and infrastructure companies

From: Free
Rated: -

Full review Website

The short version

Only Polar has a free tier, so it costs nothing to try first.
Each has a real cost: Mollie non-European cards cost 3.25% plus 20p against 1.20% plus 20p for UK domestic consumer cards, so a merchant with significant traffic from the US or Asia pays close to triple the domestic rate on that revenue.; Polar percentage-based fees higher than some specialized processors for high-volume transactions
They diverge on capability: Mollie covers Local payment methods, Polar covers Usage Billing.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mollie and Polar actually diverge.

Attributes where Mollie and Polar differ
Attribute	Mollie	Polar
Starting price	£0.3/transaction	Free
Pricing model	Per transaction by payment method	Percentage of transaction plus per-transaction fee
Free tier	No	Yes
Platforms	Web, iOS, Android, API	Web, API
Category	E-Commerce	Accounting

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Mollie

Local payment methods
Published rate card
Hosted checkout and payment links
Subscriptions API
Point of sale terminals
Plugin ecosystem
Multicurrency settlement

Only in Polar

Usage Billing
Subscriptions
Seat Management
Prepaid Credits
Hosted Checkout
Cost Insights
Merchant of Record

What people use each for

The jobs each tool is most often brought in to do.

Mollie

A Dutch or Belgian shop where most customers pay by iDEAL or Bancontact and the flat 30p beats a percentage rate on high-value basketsnot Polar
A small merchant that wants published pricing rather than a sales call before it can model card costsnot Polar
A subscription business in the EEA collecting by SEPA Direct Debit mandate instead of cardnot Polar
A marketplace or platform that needs one integration covering the main European local methodsnot Polar

Polar

Billing for token and API call consumption by LLM applicationsnot Mollie
Managing tiered pricing for infrastructure usage-based servicesnot Mollie
Handling subscription and usage hybrid modelsnot Mollie
Monetizing AI APIs with usage metering and creditsnot Mollie

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mollie

Non-European cards cost 3.25% plus 20p against 1.20% plus 20p for UK domestic consumer cards, so a merchant with significant traffic from the US or Asia pays close to triple the domestic rate on that revenue.
Coverage is built around European methods, so if you expand into Latin America or Southeast Asia you will need a second processor and a second reconciliation process rather than extending Mollie.
The in-person Pro plan requires a one-year contract and charges 20 pounds a month per additional terminal, so a shop with four tills pays 80 pounds a month in terminal fees before any transaction cost.
Mollie offers no interchange-plus option publicly, so large merchants cannot see or benefit from falling interchange the way they could on a cost-plus contract with an acquirer.
The developer tooling and reporting are lighter than the largest processors, so finance teams that want detailed fee breakdowns or granular reconciliation exports often end up building that layer themselves.

Polar

Percentage-based fees higher than some specialized processors for high-volume transactions
Merchant of record model may not suit companies preferring direct payment control
Free Starter tier limited with 5% fees reducing appeal for production use
Setup and integration effort required despite API simplicity

Pricing, plan by plan

Mollie

£0.3/transaction

Online paymentsFree
- No monthly fee
- UK domestic consumer cards 1.20% + 20p
- European and commercial cards 2.90% + 20p
In person, pay as you goFree
- No monthly commitment
- Per-transaction terminal rates
- One terminal
In person, Pro$20/month
- Lower per-transaction terminal rates
- One-year contract required
- Each additional terminal 20 pounds per month

Polar

Free

StarterFree
- 5% + $0.50 per transaction
- Free tier for testing
- Basic features
Pro$20/month
- 3.8% + $0.40 per transaction
- Full platform access
- Cost insights
Growth$100/month
- 3.6% + $0.35 per transaction
- Priority support
- Volume benefits
Scale$400/month
- 3.4% + $0.30 per transaction
- Dedicated support
- Custom integration

Which should you pick?

Choose Mollie if

You need local payment methods.
You work on Web, iOS, Android, API.
You also want published rate card.

Mollie review

Choose Polar if

You need usage billing.
You want to start without paying.
You work on Web, API.
You also want subscriptions.

Polar review

Questions people ask

Is Mollie or Polar better?: Neither clearly leads. Mollie starts at £0.3/transaction and Polar at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mollie or Polar?: Polar has a free tier; the other does not. Paid plans start at £0.3/transaction for Mollie and Free for Polar.
Does Mollie or Polar run on more platforms?: Mollie runs on Web, iOS, Android, API. Polar runs on Web, API.
Can I use Polar for free?: Yes. Polar has a free tier, so you can try it without paying. Mollie starts at £0.3/transaction.
What is Mollie best used for?: Mollie is most often used for a dutch or belgian shop where most customers pay by ideal or bancontact and the flat 30p beats a percentage rate on high-value baskets, a small merchant that wants published pricing rather than a sales call before it can model card costs, a subscription business in the eea collecting by sepa direct debit mandate instead of card, a marketplace or platform that needs one integration covering the main european local methods. Of those, a dutch or belgian shop where most customers pay by ideal or bancontact and the flat 30p beats a percentage rate on high-value baskets and a small merchant that wants published pricing rather than a sales call before it can model card costs are not what Polar is typically brought in for.
What can Mollie do that Polar cannot?: Mollie covers Local payment methods, Published rate card, Hosted checkout and payment links, Subscriptions API. Polar covers Usage Billing, Subscriptions, Seat Management, Prepaid Credits.

Answered from the vendors’ own pages

Mollie: Does Mollie charge a monthly fee?

Not on the online payments plan. You pay only per successful transaction. In-person Pro is 20 pounds a month.

Polar: Do you handle international payments and taxes?

Yes, Polar acts as merchant of record in 100+ markets, handling payment processing, tax collection, and compliance automatically.

Source

Mollie: Is iDEAL really a flat fee?

Yes, 30p per transaction regardless of the amount, which is why it is cheaper than cards on high-value baskets.

Polar: Is there a free tier?

Yes, the Starter plan is free and charges 5% + $0.50 per transaction, ideal for testing and early-stage development.

Source

Mollie: Can I use Mollie outside Europe?

You can accept non-European cards but at 3.25% plus 20p, and merchant accounts are aimed at European businesses. It is not a global processor.

Polar: Do you offer discounts for startups?

Yes, the Startup Program provides the Scale plan free for 12 months for early-stage AI companies.

Source

Mollie: Does Mollie do interchange plus?

Not publicly. The published rates are blended, so falling interchange does not flow through to you automatically.

Mollie vs Polar

Mollie

Polar

The short version

Where they differ

What each one covers

Only in Mollie

Only in Polar

What people use each for

Mollie

Polar

Where each one falls short

Mollie

Polar

Pricing, plan by plan

Mollie

Polar

Which should you pick?

Choose Mollie if

Choose Polar if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Mollie

More on Polar

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