The title may be misleading as I had trouble summarizing the question in a phrase.
I'm looking for a word to mean "usable again", referring to a mobile app. I'm looking for something along the lines of "replayable" for games.
I want to reword the phrase "give both hardcore & casual fans a reason to keep coming back" to make it sound more technical, preferably something along the lines of "to provide word here to the app". If I were to refer to a game, I would word it as "to add replay value to the game".
Thank you very much.