QR 33x33 Versión 4

MIT App Inventor Help
2

Some alternatives:

https://api.qrserver.com/v1/create-qr-code/?size=70x70&data=ExampleText
(QR code API: command “create-qr-code” (generate QR code, QR code generator))

https://quickchart.io/qr?ecLevel=L&text=ExampleText

https://qrcode.tec-it.com/API/QRCode?data=ExampleText