AI generates convincing text, that's what it does, but that doesn't mean it "sees" anything. A model like ChatGPT does pattern matching on billions of texts - it recognizes tarot structures and formulas that sound right, and mixes them in a way that seems personalized. The thing is you give it info about yourself (your name, your question, your birth date maybe?) and the AI creates an interpretation that feels tailored. But it's kinda like a horoscope: vague and flattering enough that you find connections everywhere. Even a traditional tarot reading works the same way - it's projection, you put into it what you want to see.
The real question is more like: are you looking for an actual answer or some comfort? If it's just for fun or to think things through, sure, a tarot app isn't dumber than any other game. But if you're actually counting on it to make decisions, that's a problem. AI doesn't have magical powers - it just remixes what already exists really well. It's not exactly "marketing," it's just that people confuse technical sophistication with wisdom. Did you notice if the app tries to predict concrete things or is it more like "working on yourself"?