With all of the apps thats in the playstore its amazing to find an app like this.
It helps in easy maintenance of whatsapp accounts without any headache.
We face many difficulties while switching an whatsapp account from one device to another but with the help of this app one can easily do so simply by scanning the user barcode from the target device.
Its also amazing that it helps to do whatsapp via laptop, devices which doesnot have SIM facility.
I have used it for a period of almost 3 months and still enjoys one of the many upgrades.