With this Grayscale Camera app, you can take a photo in grayscale instantly. There are no settings nor more than two steps. Features – Instantly take photo from the rear camera – Automatically save the grayscale photo into the photo library – Geotagging is supported – Live preview window – Metadata is included such as GPS and camera status – Super fast ready to shot time – Very shot shutter interval This app is free and you can download it here