I would like to make a recap of all known PoS (Point of Sale) systems with integrated Bitcoin payments, for small or big merchants, custodial or self-custodial, "ready to go" (no need any other complex installations)
PoS
Definition - A simple UI where the user can add items, prices, stock, images and easily charge in BTC, directly from that PoS UI.
- BTCPay Server PoS App - one of the biggest and well known self-custodial PoS
- LNbits PoS - PWA or mobile app (useful for tablets), offline shop, TPoS online and offline device, self-custodial and/or shareable instance
- Zeus LN PoS - integrated simple PoS into your mobile / tablet device, working with remote or integrated LN node. Keep in mind, the embedded LND node can be run in persistent mode and you could have a great simple solution for a small shop with an "always online" LN node connected to your PoS, self-custodial PoS
- Breez Wallet PoS - simple PoS UI in the app, self-custodial PoS
Light PoS (payment terminals)
Worth mentioning OTHER systems that are NOT real PoS but could be used together with other PoS systems. It means you can input the amount and get a QR code for the LN invoice and can be very useful in small shops that want to start accepting BTC payments with their already in place systems.
- Opago Pay - easy to use offline device that fw payments to your own wallet / LN address, the Bitcoin PoS for boomers
- CoinOS - very simple, non-KYC custodial account, web app with integrated swaps onchain-LN.
- Blink Merchants - easy UI for small merchants, custodial, with fiat conversion
- Wallet of Satoshi - simple integrated PoS into the app, custodial
- Ibex Pay - custodial, with conversion to fiat
A separate mention is Odoo ERP system, but need previous installation / configuration. But this one is a full ERP system that can be used with Bitcoin payments directly.
Do you know more systems / solutions? Please add them in comments.