The paid version gives added features that any pro would love. There’s a free option that will offer plenty for the amateur photographer. When it comes to a professional level photo stitching software option, PTGui is the top choice. PTGui PTGui allows for stitching panoramas with multiple rows and columns It’s available for free and is compatible with Windows, Mac, or Linux. But the software has great features like control points, correction of inconsistent levels, and manual adjustments of projections. Its current interface is more functional than user-friendly. Its features and interface are growing and changing.