I've played with AWS Rekognition a little bit. It's definitely WAY faster to do it on-device. Plus it works even in Airplane mode. I'm running the iOS11 Vision

I've played with AWS Rekognition a little bit. It's definitely WAY faster to do it on-device. Plus it works even in Airplane mode. I'm running the iOS11 Vision stuff, my own text recognition CoreML neural network (81 times per loop), plus all the ARKit stuff and I can still get 30-60 fps on my iPhone 7+