Built an iPhone app with 3D planets via a Dot's own computer

added Oct 8, 2026

I used GPT-6 Astra to build an iPhone app, including the 3D planets inside it. 🌍 It used my computer to create the models in Blender, then built the native app around them using RealityKit and Xcode. You can explore the planets and even open Earth to see its layers. What surprised me was being able to guide the whole process: ask for changes, test the app on my actual iPhone, and save working versions along the way. I put together a free guide with the steps and prompts I used so you can follow along and adapt the process to your own app. The free step-by-step guide is linked in my bio. @ChatGPT #codex #chatgpt #chatgpt_partner

TikTok creator @codewithbeto used his Dot (GPT-6 Astra) to build a complete iPhone app: the dot created 3D planet models in Blender on its own computer, then assembled the native app around them using RealityKit and Xcode. He could ask for changes, test the app on his actual iPhone, and save working versions along the way. NOTE: video carries #chatgpt_partner tag, disclosed per hunter policy. Full step-by-step guide linked in his bio.