It’s nothing like that. Using an iPad for study assistance is a conduit to many credible sources and tools. They can be evaluated using context, reputation, reviews, etc.

An LLM generates non-deterministic information using sources you can’t even know, let alone evaluate, and is more primed to agree with you than give critical and objective evaluation. It is, at best, like asking your closest parent to help you through difficult interpersonal situations: The interaction is probably, subconsciously, going to be skewed enough towards soothing you that you just can’t consider it objective. The difference is that with an LLM, that’s deliberate. It’s designed in.