Poly Duo

For the first time, your own ChatGPT and Claude apps work together on your phone, one tap, free. Poly Duo is an iPhone shortcut that sends your question to both apps and shows where they agree and where they differ, so you get a second opinion without copying anything between apps. Any AI can sound sure and still be wrong. It works with the free ChatGPT and Claude accounts you already have, and with the models of your paid plans if you have them. The code is open on GitHub.