This project is using keras-vggface to identify similar faces on iOS.
Below are few screenshots demonstrating how it works.
Keras vggface model was converted to CoreML, and is used directly on iOS device.
Converting Keras model to coreml:
model = VGGFace(model='resnet50', include_top=False,
input_shape=(224, 224, 3),
pooling='avg')
coreml_model = coremltools.converters.keras.convert(model,
input_names="image",
image_input_names="image")
coreml_model.save("vggface-resnet50.mlmodel")