It's the ability to customize the codes that you're paying for. Ad logos, and an almost limitless amount of customization. If all you want is standard black and white squares, that's easy and free all over the place.
Adding logos to QR codes, changing colors or replacing squares with circles in QR code is a CS sophomore weekend project at best. It's really fun and quite easy to do. You don't even need to understand Reed-Solomon codes for that.
This project, however, doesn't even do it. It just imports popular react library `react-qrcode-logo` [1] which does all the job (few dozens lines, really) [2].
This is like telling someone in Marketing "recompiling the linux kernel and turning on some new drivers is really simple. You don't even need to understand kernel architecture to do that."
Yes, it's simple for you, but for folks who just want to make sure that all their QR Codes reflect their brand, having to recreate that every time isn't worth it.
This project, however, doesn't even do it. It just imports popular react library `react-qrcode-logo` [1] which does all the job (few dozens lines, really) [2].
[1] https://www.npmjs.com/package/react-qrcode-logo
[2] https://github.com/gcoro/react-qrcode-logo/blob/master/lib/i...