Incredibly helpful AI app that surpasses Google search (for me)

My husband’s employer has the directors checking out AI search and discovery apps. I couldn't access the ones he was using, so I tried a bunch for iOS. The best one imho is PERPLEXITY. It's super fast and generates more accurate results for me than any search engine PLUS it provides you with links to all the cited sources that you can then access from the app. It also keeps a record of your threads so you can access the info whenever you forget it, which for me happens a lot!