Quick Verdict
Choose Stripe for online-first businesses that need developer flexibility - SaaS, e-commerce, and API-driven products. Choose Square if you have a physical location or need an integrated POS system - Square's hardware, inventory management, and staff tools are purpose-built for retail, restaurants, and service businesses.
The Core Difference
Stripe is payment infrastructure for the internet. Square is payment infrastructure for physical spaces. The question isn't which is better - it's which matches your business model. If you're mostly online: Stripe. If you're mostly in-person: Square. If you're both: you'll probably end up using one for each.
Stripe: Built for Online and Developer-First
Stripe's API is the standard for building payment flows into products. SaaS companies use Stripe Billing. Marketplaces use Stripe Connect. Stripe Radar handles fraud. For any business where payments are embedded in a digital product experience, Stripe is the right foundation.
Square: Built for Physical Commerce
Square started with a small card reader you could plug into your phone, and that simplicity is still its core strength. The Square POS is free, feature-rich, and works for retail, restaurants, appointments, and service businesses. Square also offers payroll, team management, and marketing tools that work as an integrated suite.
Stripe Pros
- Best developer API in payments
- Stripe Billing for subscriptions
- Lower international card fees
- Modular - use only what you need
Stripe Cons
- Requires developer for full setup
- No free POS hardware
- No built-in payroll or HR tools
- 2-day standard payout (Stripe Terminal)
Square Pros
- Free card reader to start
- Full-featured free POS software
- Integrated payroll, inventory, scheduling
- Great for retail and restaurants
Square Cons
- Less developer-friendly API
- Limited subscription billing
- Higher fees for keyed transactions (3.5%)
- Account freezes reported for new businesses
Frequently Asked Questions
Can I use Stripe for in-person payments?
Yes. Stripe Terminal offers in-person payment hardware starting at $299. It's well-suited for businesses that are primarily online but need occasional in-person capability. For primarily in-person businesses, Square's hardware and POS software are a better fit at lower upfront cost.
Is Square good for e-commerce?
Square has decent e-commerce tools through Square Online, but they're less flexible than Stripe for custom integrations. If your e-commerce needs are simple (selling products from a Square-built site), it works fine. If you need a custom-coded store or complex payment flows, Stripe is better.
Which has better fraud protection?
Stripe Radar (machine learning fraud detection) is generally considered more sophisticated. Square also has fraud protection but it's less customizable. For high-risk categories or businesses with unusual transaction patterns, Stripe gives you more control over fraud rules.
Does Square charge a monthly fee?
Square POS, the card reader, and basic features are free. Advanced features cost extra - Square for Restaurants is $60/month, Square for Retail Plus is $89/month, Square Appointments Plus is $29/month. There's no charge just to use the free card reader and basic POS.