Square
Best for in-person POS & omnichannel retail
Pros
- Free POS app with optional paid tiers for advanced features
- Card readers and registers for chip, tap, and swipe
- Invoices, online store, and appointment tools in one ecosystem
Cons
- Hardware costs add up for full countertop setups
- Processing rates vary by in-person vs online — confirm on squareup.com/pricing
Ideal use case: Shops, food businesses, salons, and sellers who want a proven in-person checkout with optional online channels.