Like!
The app does what is printed on the tin: Simply b&w. Great fun playing with those good ole' tinted filters, add grain or dive into prefab profiles based on true b&w films of yesteryear. One gripe tho: When saved to camera roll, the effects become less pronounced than when viewed in the app. For those who'd been swearing their nights away in a basement darkroom a long, long time ago, this just adds to the nostalgic charm - back then nothing turned out the way you'd think.