Quick answer
No winner yet. Stripe and Square differ most in architecture and intended operating model. Use this researched comparison to decide which deserves a hands-on pilot—not as a substitute for one.
At a glance
| Decision factor | Stripe | Square |
|---|---|---|
| Orientation | Online payments / APIs | Payments + POS, omnichannel |
| Online rate | 2.9% + 30¢ (standard US domestic card) | Varies by plan/service |
| API rate | 2.9% + 30¢ (standard) | Online API 2.9% + 30¢ |
| In-person selling | Not the focus of this comparison | Core orientation; hardware costs apply |
| Best first question | How custom is your online checkout? | How much do you sell in person? |
Architecture and target user
Stripe
Online, API-oriented payments platform.
Worth investigating for online-first businesses and custom checkouts.
Square
Payments plus point-of-sale and omnichannel commerce tools.
Worth investigating for merchants that sell in person and online and want one provider.
Ease and implementation considerations
Stripe
Integrate through a storefront plugin or directly via APIs.
Square
Choose a Square plan/service—its own online tools or the Online API—plus POS hardware if selling in person.
These are research observations, not timing or usability test results. Implementation depends on catalog, data migration, design, channels, integrations, internal skills, and partner scope.
Ecosystem and integrations
Stripe
Widely offered by ecommerce platforms; API-first for custom builds.
Square
Used as a standalone commerce system or as a payment provider connected to other storefronts.
Pricing approach
Stripe: Standard US domestic online card: 2.9% + 30¢, with surcharges for manual entry (+0.5%), international cards (+1.5%), and currency conversion (+1%). Verified Sep 28, 2026.
Current Stripe pricingSquare: Online rates vary by plan/service; the US fee page shows 3.3% + 30¢ and 2.9% + 30¢ in different columns, and the Online API at 2.9% + 30¢. Verify the rate for your plan. Verified Sep 28, 2026.
Current Square pricingSquare’s pricing depends on plan and service, so a single-number comparison with Stripe would be misleading. Decide your channel mix and Square configuration first, then compare.
Build a scenario-based total-cost model. Include implementation, ongoing labor, extensions, communications or payments, support, and migration—not only the published base price.
Which businesses should investigate each
Investigate Stripe if…
- You sell primarily online.
- You need custom checkout or payment flows.
- In-person selling is minor or handled elsewhere.
Investigate Square if…
- You sell in person as well as online.
- You want POS and online payments from one provider.
- You are comfortable choosing a Square plan to determine your rate.
What we still need to test
- Run the same online test orders through Stripe and Square’s Online API and reconcile fees.
- Test an in-person sale on Square alongside online orders and compare unified reporting.
- Evaluate refunds, disputes, and payout timing for each.
BestStorefront will not name a winner before those scenarios are completed and documented.
Decision support
Frequently asked questions
Is Square’s online rate the same as Stripe’s?
Square’s Online API is listed at 2.9% + 30¢, matching Stripe’s standard US domestic card rate, but other Square online contexts show different rates by plan.
Which is better for in-person sales?
Square is oriented toward POS and omnichannel selling. We have not tested either for in-person workflows.