Hello, is the version of Escape from the pit I bought on GOG also working on android or ipad ?
While android might be a little possible (granted, you'd have to allow sideloading and have a device that lets such things happen) it's not here, and GoG doesn't give you any Android versions. Closest you'll ever get here are DosBox run games, which can be run using DosBox Turbo. Now there are mobile versions of both Avadon 1 and Escape from the pit, but you'll have to buy them elsewhere.
Apple will never be in another store. They're just that closed in.