HDR-Merge vs SNS-HDR

HDR-Merge is a web platform for AI HDR photo enhancement and 360° stitching. It detects exposure sets, combines bracketed images, and applies tone mapping automatically. Each HDR merge accepts three to nine exposures, and the service supports both RAW and JPEG files. Optional AI processing adjusts color, contrast, and detail. HDR images can be stitched into 360° panoramas in the cloud. HDR-Merge also describes bulk processing for hundreds of bracketed sets, with batches of 1,000 or more images. The browser-based service requires no installation or GPU and works on any device with a browser. AI-enhanced outputs are listed at 4K or 2K. Plans start at $27 a month, with no free plan but a free trial. Starter includes 150 credits monthly; Pro includes 400 and bulk processing; Agency includes 1,800, unlimited bulk processing, and 24/7 phone and email support.

SNS-HDR processes photo sequences into HDR images and can also process single images. It reads JPEG, TIFF, RAW files including DNG, OpenEXR, and Radiance HDR. For sequences, it can align source exposures and reduce ghosting and chromatic aberration. Editing tools include masks, presets, project saving and restoration, and batch processing; the software also supports 360° panorama processing. Its controls and presets are intended to produce natural-looking results. Listed outputs include JPEG, TIFF, TIFF-8, TIFF-16, SNSX, HEIC, and HEIC-10, with HEIC output available on macOS. It runs on Windows and macOS, requiring Windows 10 64-bit or newer, or macOS 14 or newer on Apple Silicon. It integrates with Adobe Lightroom Classic as a plug-in or external editor, but not cloud-based Lightroom. SNS-HDR Lite is freeware with a commercial license. Home costs €30 a month for a non-commercial license; Professional costs €85 a month for a commercial license. The Home Lightroom plug-in handles one series at a time, while Professional adds series splitting and quiet mode; batch processing is a Pro feature. A Pro demo is available to try before purchase.