Yoti.
Yoti's recently launched age-estimation tech, which uses neural network learning to estimate a person's age from an image of their face, with a mean error rate of ±2.5 years in the 18-30 age band.
They found some of the estimates were way off, until they discovered the subjects were just out-lying about their age.
Mine's the one with SPSS for Dummies in the pocket --->