Square: Best for taking taps on any phone at the standard rate
Square is the only system here that confirms Tap to Pay on iPhone and Android with no extra charge for the tap. You pay 2.6% + 15 cents, the same as any other card transaction, so the decision to go contactless costs you nothing beyond what you already pay.
If you want a dedicated device, the Square reader is $59, mid-range on this page. The $0 monthly plan means you can run contactless on a phone and add the reader later if the counter needs one.
One hardware condition on the iPhone side: Tap to Pay needs an iPhone XS or newer running iOS 15.5 or later. Check the oldest handset your staff carry, because an iPhone X will not work. That rules out a surprising number of phones still in daily use.
Pros
- Tap to Pay on both iPhone and Android
- No extra fee for tapping
- $0 monthly plan
Cons
- Needs iPhone XS or newer on iOS 15.5 or later
- Offline tap behavior not published
- Country coverage not published
Pricing: $0/mo (Square Free). Reader $59. 2.6% + 15 cents per tap.