For the past year, PhotoStructure has been available for use for free in exchange for your feedback. The thoughts and guidance our early users have shared with us has been invaluable: thank you!
Version 0.9 was the last beta release of PhotoStructure. For details about pricing, subscriptions, lite versus plus features, what happens when subscriptions lapse, and many other details, please read https://photostructure.com/about/v-0-9/#-this-_really-will_-be-our-last-beta-version
Version 1.0 is on track to be released in the next couple weeks: it’s going to be the biggest release of PhotoStructure yet!
Edit: (I said a couple months, right?)