On $1,000: Square Free, card or invoice $33.30, Stripe, card $29.30.

Side by side

Stripe, card is cheaper on a $1,000 payment, by $4.00. Both charge more than a bank transfer.

What beats both on a $1,000 payment

1. Melio, bank transfer request: $0.00 instead of $29.30, so you keep $29.30 more per $1,000 payment, $1,406.40 a year at 4 a month.
2. Zelle for business (through your bank): $0.00 instead of $29.30, so you keep $29.30 more per $1,000 payment, $1,406.40 a year at 4 a month.
3. Wise Business, USD account ($31 once): $0.00 instead of $29.30, so you keep $29.30 more per $1,000 payment, $1,406.40 a year at 4 a month.
4. Payoneer receiving account, then withdraw: $1.50 instead of $29.30, so you keep $27.80 more per $1,000 payment, $1,334.40 a year at 4 a month.

Sources