QR Code is an application of encode and decode QR image for Android GPhone. QR 2D BarCode attract more and more attention in the realy world now. 1- With QRCode, you can Encode and Decode QR 2D BarCode image. 2- SMS is only for sending QR image URL. Therefore, before SMS you need to upload QR image. Send SMS from one android phone to another android phone.