thank you all for your answers

i would like to create an app that allows users to quickly and cheaply go through transaction such as for payment in the supermarket etc.

Now I understand more how transactions work on the bitcoin network and how it works at ripple.

Now I wonder which network is best to do this with.
I assume that on the btc and eth network will not work.
Is the bep20 network of binance a good idea or will the transaction costs here also be too large for the concept I would like to implement?


thanks again to everyone who is trying to help me find my way around this.