I couldn’t verify a dedicated JainGPT iPhone app. The official JainKnowledge page shows JainGPT as a web-based login/platform. ( jainknowledge.com)

For iPhone/iPad, JainKnowledge’s app-related page points to “Jain – Tirth Yatra Seva” as an iOS app for tirth-related use, rather than a JainGPT app. ( jainknowledge.com)

So, the safest answer is: currently I can confirm JainGPT on the website, but not a separate iPhone app for JainGPT. ( jainknowledge.com)