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Developers·· 7 min read

Stripe vs Adyen vs Braintree: Payment Processor Comparison 2026

Stripe has 90% of fintech mindshare. It also isn't always the right answer. Here's when Adyen or Braintree quietly wins — and how to negotiate rates that aren't publicly advertised.

By AtlasForge Engineering

The three market leaders

  • Stripe — best DX, US-first, largest developer ecosystem
  • Adyen — enterprise scale, best global coverage, hardest sales cycle
  • Braintree (PayPal) — solid middle, PayPal ecosystem, aging DX

Others (Checkout.com, Worldpay, Cybersource) matter in specific niches but aren't a founder's default.

Real 2026 pricing

Everyone quotes 2.9% + $0.30. Reality is more nuanced:

StripeAdyenBraintree
Card-present (in-person)2.7% + $0.051.5–2.2% (interchange++)2.5% + $0.10
Online (card-not-present)2.9% + $0.301.5–2.5% + fixed local fee2.9% + $0.30
International cards+1.5%Regional pricing+1%
Currency conversion+1%+1%+1.5%
Radar/fraud toolsIncludedExtraExtra
Chargebacks$15$15$15

Negotiable at scale: Everyone gets discounts starting around $80k/month in processing. Stripe rarely goes below 2.4% + $0.30 for standard card-not-present. Adyen with "interchange++" pricing typically ends up 10–30% cheaper at scale — but requires more finance sophistication.

Choose Stripe if

  • You're pre-Series B and prioritize velocity
  • Your team is engineering-heavy
  • Your customer base is primarily US
  • You want the best sandbox and documentation in the industry

Choose Adyen if

  • You're processing $100M+/year across multiple currencies
  • You have finance/ops staff who understand interchange
  • You need reliable Latin America, APAC, or EMEA coverage
  • You're a marketplace or platform (Adyen's Split Payments are strong)

Choose Braintree if

  • PayPal / Venmo checkout is a meaningful percentage of revenue
  • Your merchant is already using PayPal Business
  • You want a solid middle-of-the-road option

The interchange++ escape hatch

Stripe's headline pricing is "blended" — you pay a flat rate regardless of the actual interchange cost of each card. At scale, Interchange++ (where you pay actual interchange + a fixed markup) is significantly cheaper because you don't overpay on debit cards, corporate cards, and low-interchange transactions.

Rough math on $10M/year processing:

  • Stripe blended: $290,000/year in fees
  • Adyen interchange++: $180,000/year in fees
  • Difference: $110,000/year

At that scale, the finance-ops overhead of interchange++ pricing is worth it.

What Stripe still wins on

  • Payment Element — one-click UX with support for Apple Pay, Google Pay, Klarna, Affirm, Cash App, WeChat, ACH — all through one integration
  • Radar — best fraud detection in the industry
  • Billing — recurring subscriptions handled elegantly
  • Sigma — SQL over your payment data (huge for analytics)
  • Docs — literally best in tech

If you're launching in 2026 and payments aren't your differentiator, ship on Stripe. Migrate later if scale demands.

The migration cost

Switching processors is nontrivial:

  • ~4–8 weeks of engineering
  • Vault migration (moving tokens) requires PCI Level 1 audit involvement
  • Recurring subscriptions need dual-mode processing during cutover
  • Customer-facing UX changes

Budget $100–300k in engineering + audit time to migrate a live payment stack.

Where AtlasForge fits

We're not a payment processor. Our platform sits alongside your processor and turns transaction data (including yours from Stripe/Adyen/Braintree) into user-facing insights (Safe to Spend, cash flow, subscription detection).

Related reading:

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