Flagship for advanced hobbyists; includes all technical features of Professional at a lower price.
Zerene Stacker uses a one-time purchase model (no subscriptions) with several tiers based on intended use. Price (USD) Key Features & Intended Use Zerene Stacker Professional Free Download
While the core stacking algorithms ( and DMap ) are available in all versions, the Professional and Prosumer licenses unlock specific power-user tools: Flagship for advanced hobbyists