Face++ - API for face detection – also detects gender, age, pose

Reface - The best AI app to face-swap in GIFs and videos

Facesoft - The world's most accurate face recognition algorithm

Face Warp - Face Warp is a fun photography app developed in the market by Wombatica Software.

Facial Recognition by FB - Get notified if someone tries to use your photo on Facebook

Meitu - Meitu is a standalone photo editing application that offers almost all those features and photo editing tools that lets the smartphone users personalize their photos like a professional makeup artists and fashion designers.