You currently can't have a search engine running locally on your phone. Google search is possible the single largest c++ program every built. And nevermind the

You currently can't have a search engine running locally on your phone. Google search is possible the single largest c++ program every built. And nevermind the storage needs... But in a few years we might be able to have LLMs running on our phones that work just as well if not better. Of couse as you mention the LLMs running on large servers might still be much more powerfull, but the local ones might be powerfull enough.