UserTest.io - User testing made simple. High-quality, affordable user testing solutions from real users, here in the UK. Improve your usability!
FaceAware - Image processing with the ability to focus on faces 📸👶
Study from Facebook - User research platform that pays participants
smileML - User research powered by emotion recognition
Lobe - Visual tool for building custom deep learning models
Banuba - Face Filters SDK - Augmented Reality SDK with 3D face tracking to build face filters, AR beauty, avatars and virtual try on apps in iOS, Android, Windows & Unity.