I'm Mark Halonen, creator of Candid9. I've been writing software for a decade, and intend to keep Candid9 as a low-cost, simple utility for photographers. I can be reached at mark@candid9.com.
About
The best photos are often not taken because the subjects are engrossed in their activity, and also partly due to the stigma of social media. Candid9 allows photographers to initiate quick photoshoots with strangers in a practical manner, producing photos that otherwise would never be taken.
I have personally taken 60+ portaits using Candid9, here are some more (very amateur) examples!