"Plant a photo, watch it grow." Photovine's tagline is just as catchy as the concept behind its launch -- a mobile app-based picture sharing service that groups images together using common photo-driven themes. These groupings, called vines, let you connect with strangers while sharing photos of everyday items that you wouldn't otherwise have any interest in photographing. You can have a vine focused on Swingline staplers, or magazine covers, or bottle caps. But as clever as this concept may seem, it's difficult to ignore Piictu, which budded several months before the Google app. It's certainly not uncommon for duplicate services to sprout, all based on the same underlying concept. But Photovine doesn't stop there -- the app's design is also remarkably similar to Piictu, down to page layouts and even main category tabs. For Piictu's "Following" tab, Photovine has "Watching." Piictu's "Latest" section is matched with "Fresh," and Photovine didn't even bother searching for a synonym for "Popular," which you'll find in both apps. Jump past the break for a deeper look, along with statements from the makers of both apps.