Great concept — missing key features.
It pains me to give this app a low rating, as I love the idea of a no-frills black & white camera app. But not all features are frills. The program should save EXIF metadata — time and location. And it should use background processing to make sure photos arent lost if you exit the app while saving.
And a few frills wouldnt hurt. It would be nice to adjust the RGB balance of the conversion, and tune contrast (ideally separately for shadows, midtones, and highlights).
mattdm.org about
Vint B&W MII - Black and White camera