Some functional differences may include likely an additional required app for each (more app clutter), more clone products, shoddy knock offs, selling your prod

Some functional differences may include likely an additional required app for each (more app clutter), more clone products, shoddy knock offs, selling your product far above or below cost, stores without the infrastructure to keep your data private, no UI enforcement (lots of ugly Java), no subscription enforcement (call us and wait to cancel), no app stability requirements (constant restarts and sluggishness)...