Square POS vs SumUp POS

Side-by-side comparison — pricing, features, ratings, use cases. Find which Pos Systems fits you best.

⚖️ Editor's verdict
🏆 SumUp POS wins by 22 points
SumUp POS is a fantastic choice for micro-businesses, pop-up shops, and mobile vendors who need a low-cost, no-contract payment solution with basic inventory and sales tracking
See why ↓
62/100
🔍 Independently researched · 📊 Data-driven
Square POS
Square POS
40/100
Free tier
Small to medium-sized retailers, restaurants, food trucks, and appointment-based service providers that want a free, eas

💰 Pricing

🆓 Free tier available
Free app but pay standard processing fees (2.6% + 10¢ per in-person transaction).
Fee notes:
  • In-person payments (card present): 2.6% + 10¢ per transaction (Free tier).
  • Online/invoice payments (card not present): 2.9% + 30¢ per transaction.
  • Keyed-in (manually entered) transactions: 3.5% + 15¢ per transaction.
  • Lower rates available with paid plans: Plus 2.5% + 10¢, Premium 2.4% + 10¢ in-person.
  • Chargeback fee: $25 per occurrence (bank fees may also apply).
⚠ Watch for:
  • PCI compliance fee: $26/month if you don't use Square's hardware or software for payments.
  • Chargeback fee: $25 each time a customer disputes a transaction.
  • Instant transfer fee: 1.75% of the amount for immediate access to funds.
  • Hardware costs not included (e.g., magstripe reader $49, contactless reader $99).

🔧 Features

✓ Block Owned✓ Free App✓ Retail Restaurant Appointments✓ Ecosystem✓ Free Tier

📋 Assessment

💪 Strengths

  • The core POS app is completely free with no monthly fees. You only pay per-transaction processing fees, which makes it incredibly accessible for startups, seasonal vendors, and small businesses with irregular cash flow. You can even accept payments using just your smartphone and a cheap card reader, which is perfect for pop-up shops and farmers markets.
  • Seamless ecosystem integration: Square POS connects payments, inventory, customer management, payroll, appointments, and e-commerce all in one dashboard. This eliminates the need to juggle multiple systems and speeds up daily operations. For example, when you sell an item in-store, inventory is automatically updated on your online store and sales data appears instantly in reports.
  • Quick and easy setup: You can download the app, create a product catalog, connect a card reader, and process your first sale in minutes. The interface is intuitive, so even less tech-savvy users can get up and running without a steep learning curve. You don't need a credit card to sign up or a long-term contract to start.
  • Free online store: Unlike many competitors that charge for e-commerce integration, Square POS includes a basic online store with your free account. You can add products, set up shipping, and start selling online without paying extra for a website builder, making it a cost-effective omnichannel solution for small businesses.
  • Transparent, predictable processing fees: Square charges a flat rate with no hidden costs, and you can see exactly what you'll pay per transaction. This simplicity is a relief for business owners who are tired of complex interchange-plus pricing models. Instant transfers to your bank account are available for a 1.75% fee, which is manageable for those who need cash quickly.

⚠ Watch out for

  • Processing fees can be a burden for high-volume businesses: The card-present rate of 2.6% + 10¢ is higher than some interchange-plus rates offered by traditional processors, and keyed-in transactions at 3.5% + 15¢ are especially steep. A business processing $50,000 per month could pay over $1,000 in fees, whereas other providers might charge less, making it less competitive for large operations.
  • The free tier is limited: Advanced features like payroll (starting at $35/month), advanced inventory (from $29/month), and location reporting require paid subscriptions. Businesses that need these tools will find the monthly costs add up, which can be surprising given the emphasis on the free app. For example, without a paid plan, you can't create purchase orders or run multi-location inventory reports.
  • Hardware costs are not included: While the app is free, you must buy a card reader ($49) or a terminal ($299) to accept payments physically. This upfront cost is a hidden barrier for businesses on a tight budget, especially compared to competitors that sometimes offer free readers with a processing contract.
  • Customer support is limited on free plans: You primarily get email support and a knowledge base; phone support is only available during business hours and may be reserved for paid users. If you have a time-sensitive issue, the lack of 24/7 live support can be frustrating, especially since your entire sales operation depends on the system.

🎯 Best for

Small to medium-sized retailers, restaurants, food trucks, and appointment-based service providers that want a free, easy-to-use POS with no monthly subscription and integrated payments.

🚫 Who should skip

Large enterprises with complex inventory management, multi-store chains requiring advanced reporting, or businesses in high-risk industries should avoid Square POS, as it lacks the depth and dedicated support needed for those operations.

💰 Hidden costs

Payment processing fees (2.6% + 10¢ for card-present, 3.5% + 15¢ for keyed-in), hardware costs for chip readers ($49+) and receipt printers, plus extra paid plans for payroll, advanced inventory, and location tools. Also chargeback fees of $15 per incident and instant deposit fees of 1.5% if you want faster access to funds.

📚 Learning curve

Minimal — the app is designed for quick setup and basic operation is intuitive, but discovering and configuring advanced features like inventory rules and appointment integrations takes a bit more time.

🧑‍⚖️ Verdict

Square POS is the go-to choice for small retail, restaurant, and service businesses that want a free, easy-to-use system with low upfront costs. It's ideal if you're just starting out or have modest sales volume. However, if you process high volumes or need advanced inventory and payroll without pay

View Details
SumUp POS
SumUp POS
62/100
Free tier
Small businesses in Europe — like cafes, merch stalls, and field-service pros — that want a low-risk, pay-as-you-go card
★ Best

💰 Pricing

🆓 Free tier available
No monthly subscription required, pay only per transaction; hardware purchased separately.
Fee notes:
  • Transaction fee: 1.69% per transaction (chip and PIN, contactless, mobile wallets) for standard card payments
  • Transaction fee for manually keyed transactions: 2.55% + 0.10 USD
  • Chargeback fee: 13.00 USD per chargeback
  • Refund: no fee to refund if within same day; otherwise standard transaction fee applies
  • No monthly fees, no setup fees, no cancellation fees
⚠ Watch for:
  • Chargeback fee of 13.00 USD applies even if you win the dispute
  • Refunds after the same day still incur the processing fee
  • International cards and Dynamic Currency Conversion (DCC) may incur additional FX markup
  • Hardware costs are not included; prices for card readers range from 29 to 79 USD depending on model

🔧 Features

✓ European✓ No Monthly Fee✓ Pay Per Tx✓ 4m Merchants✓ Smb✓ Free Tier

📋 Assessment

💪 Strengths

  • Free POS software with no monthly fees or long-term contracts – This is a huge plus for small businesses and startups with tight budgets. Unlike competitors like Shopify POS (which costs $89/month for basic features) or Square (which has a free tier but pushes paid plans), SumUp's core software includes everything you need to take payments, manage products, and view basic reports at zero recurring cost. You only pay when you make a sale, which is ideal for low-volume merchants.
  • Low-cost, portable card readers with reliable Bluetooth – SumUp’s hardware is among the most affordable on the market, starting at around €29 for the basic reader. The readers are compact, charge quickly, and sync easily with your phone or tablet via Bluetooth. The 3G/4G model lets you take payments anywhere, even without Wi-Fi, which is perfect for market stalls and delivery services. This hardware-first approach is a differentiator in a market where competitors like Zettle (iZettle) charge similar prices but might not offer the same range.
  • Intuitive dashboard and simple product management – The software was clearly designed with non-technical users in mind. You can add products with photos, set prices, organize them into categories, and apply discounts in a few taps. The dashboard gives a clear overview of daily sales, transaction history, and customer data (if you collect it). This simplicity reduces training time and lets you focus on serving customers, not fumbling with software.
  • Multi-currency and multi-language support for European merchants – Since SumUp is headquartered in Europe, it handles multiple currencies and languages out of the box. This is a lifesaver for businesses near borders or those that sell to tourists. The system automatically settles in your home currency, and you can switch languages easily. This localization is a competitive edge over US-centric competitors.
  • Regulation-free setup – You can start using SumUp without a lengthy approval process. There's no credit check or extensive paperwork; you just download the app, verify your identity, and order a reader. You can even begin accepting card payments using the app’s “Card Payments” feature with a smartphone’s NFC (though it's slower than a dedicated reader). This immediacy is perfect for businesses that need to start selling quickly.

⚠ Watch out for

  • Transaction fees are relatively high compared to competitors with subscription plans – While the free POS software is great, the per-transaction fee of 1.69% for card payments is higher than some competitors if you're doing high volume. For instance, Zettle (iZettle) charges 1.5% for Visa/Mastercard, and SumUp itself offers lower rates (1.49%) if you pay for the SumUp One plan. If you're processing more than €10,000/month, the cumulative fees might exceed what you'd pay with a flat monthly subscription like Lightspeed or Shopify POS.
  • Advanced features are locked behind a paid SumUp One plan – The free tier only includes basic reporting, inventory, and single-user access. If you need multiple staff users (with different permissions), advanced analytics, or integrations with accounting software like Xero or QuickBooks, you'll need to subscribe to SumUp One (starting at €39/month). This effectively adds a recurring cost, undermining the “free” appeal for growing businesses.
  • Hardware is proprietary and not compatible with third-party peripherals – Unlike open POS systems that allow you to connect any barcode scanner, cash drawer, or receipt printer, SumUp hardware is designed to work only with SumUp’s own accessories. This limits your ability to build a custom setup. For instance, you can't connect a standard cash drawer via USB; it must be a SumUp-compatible one (which they sell, but at an additional cost). This lock-in could be a dealbreaker for businesses with existing hardware.
  • Customer support is limited – SumUp primarily offers support through email, a help center, and a contact form on their website. There's no phone support in many countries, and live chat is only available in certain regions. Response times can vary, with some users reporting delays of 24-48 hours. This might be frustrating if you encounter a payment issue during a busy sales period and need immediate help.
  • No built-in loyalty program or CRM – While SumUp does allow you to collect customer emails and send promotional emails (via the free plan), there's no advanced loyalty program or customer relationship management (CRM) built in. You'll need to integrate third-party apps (often via the paid plan) to create points-based loyalty or targeted marketing campaigns. For businesses that rely on repeat customers, this could be a missing feature.

🎯 Best for

Small businesses in Europe — like cafes, merch stalls, and field-service pros — that want a low-risk, pay-as-you-go card payment solution without subscription fees.

🚫 Who should skip

Full-service restaurants, large multi-location retailers, and businesses that need deeply customizable POS software for complex workflows.

💰 Hidden costs

The card reader hardware costs one-time (around $49-$99 depending on model). Optional SumUp One plan costs around $39/month (or local equivalent) and unlocks lower transaction fees and advanced features. Currency conversion fees apply for cross-border sales.

📚 Learning curve

Minimal — setting up the app and pairing a card reader is straightforward, and the interface is simple enough for staff to learn in a few minutes.

🧑‍⚖️ Verdict

SumUp POS is a fantastic choice for micro-businesses, pop-up shops, and mobile vendors who need a low-cost, no-contract payment solution with basic inventory and sales tracking. It's also ideal for businesses that want to start taking card payments without a significant upfront investment. However,

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📊 Use Case Suitability

Higher score = better fit. Scores from editorial review.

Use CaseSquare POSSumUp POS
Popup shops and farmers market stands95— No monthly fees and easy setup on a smartphone make it ideal for temporary busin
Cafes and small restaurants90— The free restaurant POS includes menu management, tip on-screen, and table logic
Boutique retail stores88— Square POS provides robust item catalogs, discounts, and receipt options for ove
Salons and appointment-based services82— Square Appointments integrates directly with the POS, allowing easy booking, cli
Food trucks and mobile vendors85— The app works on phones and tablets, supports offline payments, and pairs with S
Pop-up retail shops and sidewalk stands—95 SumUp's portable card readers and no-monthly-fee pricing make it ideal for low-v
Salon and home-service payment collection—85 You can invoice clients and take card payment at their doorstep, though booking
Cafe counter checkouts—90 Simple order entry, inventory tracking, and quick payment suits counter service

🧭 Which One Should You Pick?

Choose Square POS if...

  • You are: Small to medium-sized retailers, restaurants, food trucks, and appointment-based service providers that want a free, eas
  • 👍 Completely free app with no monthly fees — you only pay per-swipe processing fees, making it accessi
  • 👍 Integrated ecosystem: payments, inventory, payroll, appointments, and ecommerce tools all work in on
  • 👍 Easy setup: you can create a catalog, connect a card reader, and accept payments within minutes usin
  • 💰 Free tier available
  • ⚠ Trade-off: Processing fees can add up quickly — the card-present rate is 2.6% + 10¢, and ke

Choose SumUp POS if...

  • You are: Small businesses in Europe — like cafes, merch stalls, and field-service pros — that want a low-risk, pay-as-you-go card
  • 👍 Completely free POS software with no monthly fees or contract.
  • 👍 Low-cost, portable card readers that sync to the app via Bluetooth.
  • 👍 Trusted by millions of merchants across Europe, with localized payment processing for multiple curre
  • 💰 Free tier available
  • ⚠ Trade-off: Transaction fees are higher than some competitors if you need premium rate disco

❓ Frequently Asked Questions

Is Square POS really free to use?

Yes, the Square POS app is free to download and use with no monthly subscription required. You only pay processing fees per transaction, which are typically 2.6% + 10¢ for card-present payments.

What are the extra costs beyond processing fees?

If you need a chip and contactless card reader, that hardware costs around $49 for the Square Reader. Advanced features like payroll, advanced reporting, and some inventory capabilities require paid plans starting at $29/month, and chargebacks cost $15 each.

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