Tintii is a photo filter for saturation control, especially selective colour effects.
Use Tintii to quickly create selective colour photos. Start with a full colour photo, then switch colours on (full colour) or off (black and white) to pop the subject.
Or... keep it subtle. Tintii can emphasise and exaggerate colours that form the key ingredients of a composition, to draw attention where it's needed.
Tintii comes as a standalone application or as a plugin for Adobe Photoshop or Corel PaintShop Pro. The standalone app is $16.99, and the plugin is $39.99 (which includes the standalone application).