I'm shocked to see that this useless single use app has been downloaded 100k+ times on the play store. I never in my life had thought "uhm is this HDMI cable legit? Let's download a specific proprietary app to verify the barcode"
But at the same time i would never bought those overpriced "ultra certified cable". If it works then it follows the specs, if it doesn't work, i return it to the seller. Paying 10x or more for having an "ultra certification" sticker on the box seems audiophile bullshit