WOMBO - Make your selfies sing
Thankbot - Drive more business with handwritten notes
Celebrity Face Detector - Celebrity Face Detector is a free mobile app that allows you to see celebrities around the world that similar to you.
Felt for iPhone - Handwritten cards for the modern world
DeepFaceLab - DeepFaceLab is a powerful open source facial landmark detection library that can help you detect and track landmarks on your own deep neural networks trained by millions of datasets.
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.