Histats - Start tracking your visitors in 1 minute!
Ximilar - Ximilar is a Computer Vision platform that allows you to build and train Deep Learning models for Image Recognition, Detection, and Visual Search. Allows you to download a model for offline usage or connect to them via API.
StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.
CompreFace - CompreFace is a free face recognition service from Exadel that can be easily integrated into any system using simple REST API.
AFSAnalytics - AFSAnalytics.
Amazon Rekognition - Add Amazon's advanced image analysis to your applications.