Seek by iNaturalist - Seek by iNaturalist is an education application that uses the power of images recognition technology to identify nature all around the world.
Face++ - API for face detection – also detects gender, age, pose
PictureThis - Instantly identify your plants
Facesoft - The world's most accurate face recognition algorithm
SnakeSnap - SnakeSnap is a mobile application that lets you identify unknown snakes.
smileML - User research powered by emotion recognition