IAFace is a free Android app developed by SMH17 that allows you to analyze human faces in images. It offers various features such as detecting multiple faces along with their associated facial attributes, estimating the age range of a person, comparing two faces to see the resemblance level between them, and identifying celebrities.

In addition, the app offers an emotional analysis feature that can determine the emotional state of a person and also detect if the person is wearing headwear. You can enable the vocal output from settings to configure the app to speak out loud results. You can also share a picture from any app with Image Analysis Toolset and IAFace will load your picture and analyze it directly.

Furthermore, the app supports TalkBack and can be used by low-vision users. It can be used without an internet connection, but results may be less accurate and some analysis modes may not be available. You can export the results as a text file. Overall, IAFace is a useful app for those who want to analyze faces in images and get detailed information about them.