AKVIS HDRFactory vs MergeHDR

AKVIS HDRFactory is paid HDR software for Windows, macOS and Linux. It provides both listed HDR merge modes, multiple tone-mapping controls, RAW-file support and batch processing for groups of images. Finished HDR images can be saved as TIFF, BMP, JPEG, WEBP or PNG files. The product has no free plan but includes a 10-day trial. Home Plugin and Home Standalone each cost $69 as a one-time purchase for a lifetime license covering two computers and non-commercial use. Home Deluxe costs $99, paid once with the same lifetime, two-computer and non-commercial terms. Business costs $154, paid once for a lifetime license covering two computers, with commercial use allowed. AKVIS was founded in 2004. The editions differ by format, feature grouping and permitted use, while every listed plan specifies the same computer count and lifetime term.

MergeHDR detects exposure-bracketed photos in a library and merges them into HDR images after approval. It identifies three-, five- and seven-frame groups using metadata such as capture time and exposure values. Users can select alignment and one of four deghosting levels, then switch tone-mapping presets without repeating the merge. The app reads and writes through Apple Photos; its App Store listing also says it can connect to an FTP server to merge brackets directly from a camera. Listed inputs include Canon CR3, Sony ARW, Nikon NEF, Fujifilm RAF, Olympus ORF, Panasonic RW2, DNG, Apple ProRAW, HEIC and JPEG. Merged images can be saved at full quality or compressed to HEIC. Merging and previewing are free; the first 10 exports are free, with a limit of five free exports per day. Unlimited saves cost $9.99 a year or 19.99 USD once, with Universal Purchase for iPhone, iPad and Mac. Processing runs locally and offline, according to the maker, and the stated privacy label is Data Not Collected.